#
# Sep 16 homework 
# chap 3 exercise 12
# Jim Mahoney's example solution.
#
# Find the sum of the cubes of the first n natural numbers,
# where n is supplied by the user.
#

print "-- chap3ex12.py --"
print "Find the sum of the cubes of the first n integers."

def sum_cubes():
    n = input("What is n? ")
    total = 0
    for i in range(1, n+1):    # Note: 1,2,3,...,n ; NOT 0,1,...,n-1.
        total = total + i**3
        # print " DEBUG: i=", i, "; total =", total
    print "The sum of 1**3 + ... +", n, "**3 is", total

sum_cubes()