#-*- coding:UTF-8 -*-
while True:
	n=map(int,raw_input().strip().split())
	if n[0]<1 or n[0]>10:
		print "erro!again!"
	s=0
	for i in range(1,len(n)):
		if n[i]>0 and n[i]%2!=0:
			s=s+n[i]
	print s