''' Purpose: considers the subltety of swapping variable values
'''

# get and echo inputs

reply  = input( 'Enter two words: ' )

w1, w2 = reply.split()

print( )
print( 'w1 =', w1 )
print( 'w2 =', w2 )

print()

# swap the values of w1 and w2
remember_w1 = w1 # Now we won't lose the old value of w1
                 # when we reassign w1 to have w2's value
w1 = w2
w2 = w1

# print results

print( 'After swapping' )

print()

print( 'w1 =', w1 )
print( 'w2 =', w2 )