(№ 6593) (Е. Джобс)

import math
def deli(a):
    x = max(a)
    for i in range(len(a)):
        if a[i] == x:
            a[i] = 0
            break
    return a


def F(a):
    x = max(a)
    if x ** 2 > a[0] * a[1] * a[2] * a[3] * a[4] / x:
        a = deli(a)
        y = max(a)
        a = deli(a)
        if x + y > 2 * (a[0] + a[1] + a[2] + a[3] + a[4]):
            return int(1)
    return int(0)


f = open("in.txt")
cnt = 0
while 1:
    s = list(map(int, f.readline().split()))
    if not s:
        break
    cnt += F(s)
print(cnt)