"""
Problem 1
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.
"""

#Create a new array. We will append the multiples to this.
multiples = []
SumOfNumbers = 0
for i in range(1,1000):
	if i % 3 is 0 or i % 5 is 0:
		multiples.append(i)
for j in multiples:
	SumOfNumbers += j
print SumOfNumbers
