def is_prime(v):
    if v < 2:
        return False
    for i in range(2, int(v ** 0.5) + 1):
        if v % i == 0:
            return False
    return True


S = input()
N = len(S) - 1
ans = 0
for bit in range(1 << N):
    tmp = S[0]
    for j in range(N):
        if bit >> j & 1 == 1:
            tmp += "+"
        tmp += S[j + 1]
    v = eval(tmp)
    if is_prime(v):
        ans += 1
print(ans)