''' Purpose: introduce variable reassignment
                       ----
'''

# Variables can change values over time
nbr_rabbits = 2         # first generation

print( 'Number of rabbits:', nbr_rabbits )

input()

nbr_rabbits = 4         # next generation changes what is stored in nbr_rabbits and we lose the old value.

# You could make a new variable, but here we are showing that variables can change.

print( 'Number of rabbits:', nbr_rabbits )

input()

nbr_rabbits = 8         # next generation

print( 'Number of rabbits:', nbr_rabbits )

input()

nbr_rabbits = 16        # next generation

print( 'Number of rabbits:', nbr_rabbits )

input()

nbr_rabbits = 32        # next generation

print( 'Number of rabbits:', nbr_rabbits )