9

data = open('9.txt').readlines()
a = []
for e in data:
    a.append(list(map(int, e.split())))
cnt = 0
for e in a:
    e.sort()
    if (e[0] + e[-1]) ** 2 > e[1] ** 2 + e[2] ** 2 + e[3] ** 2:
        cnt += 1
print(cnt)