A = [int(input()) for _ in range(6)]


def add(a, b):
    t = 1
    c = 0
    for _ in range(6):
        d = (a % 10 + b % 10) % 10
        c += d * t
        t *= 10
        a //= 10
        b //= 10
    return c


n = 10**6
used = [False] * n
used[0] = True
st = [0]
while st:
    x = st.pop()
    for a in A:
        y = add(x, a)
        if not used[y]:
            used[y] = True
            st.append(y)

print(sum(used))