<filename>euler002.py
# Project Euler
# 2 - Even Fibonacci numbers

# Each new term in the Fibonacci sequence is generated by adding the previous two terms.
# By starting with 1 and 2, the first 10 terms will be:
# 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...
# By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.

a = b = 1
sum = 0

while b < 4000001:
	if b%2 == 0:
		sum = sum + b
	a, b = b, a+b

print sum
