''' Purpose: process a user-supplied list of integers
'''

# get the input
reply = input( 'Enter list of integers: ' )

# split reply into a list of numeric strings
...

# print the list of numeric strings
...

# using a list accumulator loop, take the numeric strings one-by-one and
# accumulate a list of integers by appending integer equivalent of each
# numeric string to the list of integers.
...

# print the list of integers
...

# Using a product accumulator loop, process the integers one-by-one.
# For each of the integers, update the accumulator by scaling it by
# the integer.
...

# print the product
...