def ravn(A):
    count = 0
    for i in range(1, len(A)):
        if A[i] == A[i-1]:
            count += 1
    return count

file = open("in.txt")
count = 0
for elem in file:
    A = list(map(int, elem.split()))
    A.sort()
    if (A[3] < A[0] + A[1] + A[2]) and (ravn(A) == 1):
        count += 1
print(count)