1. Stack Trace on Error, Program Trace

In [8]:
(use-stack-trace #t) ;; the default

(define fact
  (lambda (n)
    (if (= n 0)
        1
        (* n (fact (- n 1))))))
call: (use-stack-trace #t)
['stdin', line 1, col 1]
call: #t
['stdin', line 1, col 18]
#t => #t
call: use-stack-trace
['stdin', line 1, col 2]
use-stack-trace => #<procedure>
(use-stack-trace #t) => <void>
call: (define fact (lambda (n) (if (= n 0) 1 (* n (fact (- n 1))))))
['stdin', line 3, col 1]
call: (lambda (n) (if (= n 0) 1 (* n (fact (- n 1)))))
['stdin', line 4, col 3]
(lambda (n) (if (= n 0) 1 (* n (fact (- n 1))))) => #<procedure>
(define fact (lambda (n) (if (= n 0) 1 (* n (fact (- n 1)))))) => <void>
In [9]:
(fact 20)
call: (fact 20)
['stdin', line 1, col 1]
call: 20
['stdin', line 1, col 7]
20 => 20
call: fact
['stdin', line 1, col 2]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 20
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 20
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 20
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 19
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 19
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 19
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 19
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 18
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 18
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 18
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 18
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 17
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 17
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 17
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 17
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 16
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 16
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 16
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 16
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 15
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 15
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 15
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 15
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 14
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 14
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 14
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 14
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 13
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 13
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 13
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 13
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 12
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 12
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 12
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 12
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 11
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 11
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 11
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 11
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 10
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 10
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 10
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 10
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 9
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 9
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 9
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 9
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 8
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 8
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 8
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 8
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 7
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 7
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 7
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 7
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 6
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 6
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 6
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 6
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 5
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 5
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 5
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 5
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 4
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 4
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 4
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 4
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 3
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 3
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 3
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 3
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 2
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 2
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 2
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 2
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 1
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 1
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #f
call: (* n (fact (- n 1)))
['stdin', line 7, col 9]
call: n
['stdin', line 7, col 12]
n => 1
call: (fact (- n 1))
['stdin', line 7, col 14]
call: (- n 1)
['stdin', line 7, col 20]
call: n
['stdin', line 7, col 23]
n => 1
call: 1
['stdin', line 7, col 25]
1 => 1
call: -
['stdin', line 7, col 21]
- => #<procedure>
(- n 1) => 0
call: fact
['stdin', line 7, col 15]
fact => #<procedure>
call: (if (= n 0) 1 (* n (fact (- n 1))))
['stdin', line 5, col 5]
call: (= n 0)
['stdin', line 5, col 9]
call: n
['stdin', line 5, col 12]
n => 0
call: 0
['stdin', line 5, col 14]
0 => 0
call: =
['stdin', line 5, col 10]
= => #<procedure>
(= n 0) => #t
call: 1
['stdin', line 6, col 9]
1 => 1
(if (= n 0) 1 (* n (fact (- n 1)))) => 1
(fact (- n 1)) => 1
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 1
(if (= n 0) 1 (* n (fact (- n 1)))) => 1
(fact (- n 1)) => 1
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 2
(if (= n 0) 1 (* n (fact (- n 1)))) => 2
(fact (- n 1)) => 2
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 6
(if (= n 0) 1 (* n (fact (- n 1)))) => 6
(fact (- n 1)) => 6
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 24
(if (= n 0) 1 (* n (fact (- n 1)))) => 24
(fact (- n 1)) => 24
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 120
(if (= n 0) 1 (* n (fact (- n 1)))) => 120
(fact (- n 1)) => 120
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 720
(if (= n 0) 1 (* n (fact (- n 1)))) => 720
(fact (- n 1)) => 720
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 5040
(if (= n 0) 1 (* n (fact (- n 1)))) => 5040
(fact (- n 1)) => 5040
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 40320
(if (= n 0) 1 (* n (fact (- n 1)))) => 40320
(fact (- n 1)) => 40320
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 362880
(if (= n 0) 1 (* n (fact (- n 1)))) => 362880
(fact (- n 1)) => 362880
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 3628800
(if (= n 0) 1 (* n (fact (- n 1)))) => 3628800
(fact (- n 1)) => 3628800
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 39916800
(if (= n 0) 1 (* n (fact (- n 1)))) => 39916800
(fact (- n 1)) => 39916800
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 479001600
(if (= n 0) 1 (* n (fact (- n 1)))) => 479001600
(fact (- n 1)) => 479001600
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 6227020800
(if (= n 0) 1 (* n (fact (- n 1)))) => 6227020800
(fact (- n 1)) => 6227020800
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 87178291200
(if (= n 0) 1 (* n (fact (- n 1)))) => 87178291200
(fact (- n 1)) => 87178291200
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 1307674368000
(if (= n 0) 1 (* n (fact (- n 1)))) => 1307674368000
(fact (- n 1)) => 1307674368000
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 20922789888000
(if (= n 0) 1 (* n (fact (- n 1)))) => 20922789888000
(fact (- n 1)) => 20922789888000
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 355687428096000
(if (= n 0) 1 (* n (fact (- n 1)))) => 355687428096000
(fact (- n 1)) => 355687428096000
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 6402373705728000
(if (= n 0) 1 (* n (fact (- n 1)))) => 6402373705728000
(fact (- n 1)) => 6402373705728000
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 121645100408832000
(if (= n 0) 1 (* n (fact (- n 1)))) => 121645100408832000
(fact (- n 1)) => 121645100408832000
call: *
['stdin', line 7, col 10]
* => #<procedure>
(* n (fact (- n 1))) => 2432902008176640000
(if (= n 0) 1 (* n (fact (- n 1)))) => 2432902008176640000
(fact 20) => 2432902008176640000
Out[9]:
2432902008176640000
In [12]:
(use-stack-trace #f)
(use-tracing #f)
(fact 20)
call: (use-stack-trace #f)
['stdin', line 1, col 1]
call: #f
['stdin', line 1, col 18]
#f => #f
call: use-stack-trace
['stdin', line 1, col 2]
use-stack-trace => #<procedure>
(use-stack-trace #f) => <void>
call: (use-tracing #f)
['stdin', line 2, col 1]
call: #f
['stdin', line 2, col 14]
#f => #f
call: use-tracing
['stdin', line 2, col 2]
use-tracing => #<procedure>
(use-tracing #f) => <void>
Out[12]:
2432902008176640000
In [7]:
(use-tracing #t)

2. Infinite Loops across Languages

Change to one of the Python interpreters

In [1]:
## Python:

def loop():
    loop()
    
loop()
---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
<ipython-input-1-9d9795e5a63d> in <module>()
      4     loop()
      5 
----> 6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

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      3 def loop():
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      3 def loop():
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
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      3 def loop():
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
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      3 def loop():
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
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      3 def loop():
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
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      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
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      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop()
      2 
      3 def loop():
----> 4     loop()
      5 
      6 loop()

<ipython-input-1-9d9795e5a63d> in loop