"""
2007-12-14

If we list all the natural numbers below 10 that are multiples of 3 or
5, we get 3, 5, 6 and 9. The sum of these multiples is 23.

Find the sum of all the multiples of 3 or 5 below 1000.
"""

s = 0
for n in range(1, 1000):
    if n % 3 == 0 or n % 5 == 0:
        #print n
        s += n
print s
# 233168

08d04329c94e3ada8a2280244cf2817e196ad505
"""
2007-12-14

If we list all the natural numbers below 10 that are multiples of 3 or
5, we get 3, 5, 6 and 9. The sum of these multiples is 23.

Find the sum of all the multiples of 3 or 5 below 1000.
"""

s = 0
for n in range(1, 1000):
    if n % 3 == 0 or n % 5 == 0:
        #print n
        s += n
print s
# 233168
