# -*- coding: utf-8 -*
N = int(input())
k = 0
for i in range (4):
    X = int(input())
    if X*N<0:
        k += 1
    N = int(input())
    if X*N<0:
        k += 1
X = int(input())
if N*X<0:
    k+=1
print(k)