projecteuler/pe1.py

#!usr/bin/python
### Project Euler problem 1 (estelendur)
# Find the sum of all multiples of 3 or 5 under 1000

sum = 0
for i in range(1,1000):	# assuming strictly less than 1000
	if (i%3==0 or i%5==0):
		sum += i
print sum