# 9(17) РТ

f = open(r'C:\Users\SnowDrit\Downloads\9\Новый текстовый документ.txt')
c = 0
for s in f:
    a = list(map(int, s.split()))
    if len(set(a)) == 5:
        povt = sum(a) - sum(set(a))
        sr_n = (sum(set(a)) - povt) / 4
        if sr_n <= povt * 2:
            c += 1
print(c)
# 9(17) РТ