#!/usr/bin/env python
# -*- coding: utf-8 -*-

def evenItems(file):
    evens = []
    lines = file.read().splitlines()

    for line in lines:
        evens.extend(filter(lambda x: int(x) % 2 == 0, line.split(',')))

    return evens

# Tests
#
# nums.txt data:
# 11,43,2,5,9,111,4,2,8
# 523,0,0,1,18,96,4
# -9,110,15,668,664,3,8

print(evenItems(open('nums.txt', 'r')))