print("Enter two values to swap")

a = int(input())

b = int(input())

# using a temporary variable

print("Swapping using temporary variable...")

t = a

a = b

b = t

print("Value of a is {a} and\nValue of b is {b}".format(a=a, b=b))

# using XOR operator, eliminating the need for 3rd variable

print("Swapping using XOR operator...")

a = a ^ b

b = a ^ b

a = a ^ b

print("Value of a is {a} and\nValue of b is {b}".format(a=a, b=b))

def swap_func():

'''swap the contents of a and b

@author kgashok

@param a is global

@param b is global

@returns None

'''

global a, b

print("swap_func function called")

a, b = b, a

swap_func() # go back to their original values

print("Value of a is {a} and\nValue of b is {b}".format(a=a, b=b))