7.14

kc = 0
kn = 0
k = 0
while 1:
	if k >= 5:
		if kc == (kn+3):
			break
	x = int(input())
	k += 1
	if x % 2 == 0:
		kc += 1
	if x % 2 == 1:
		kn += 1