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- def main():
- x = 1
- y = 2
- print("x is {}".format(x))
- print("y is {}".format(y))
- print("Swapping...")
- swap(x, y)
- print("Swapped.")
- print("x is {}".format(x))
- print("y is {}".format(y))
- def swap(a, b):
- tmp = a
- a = b
- b = tmp
- if __name__ == "__main__":
- main()
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