mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    def is_prime(n):
        if n == 1:
            return 0
        res = 1
        for i in range(2, n-1):
            if i * i > n:
                break
            if n % i == 0:
                res = 0
        return res

    S = input().rstrip('\n')
    N = len(S)

    ans = 0
    for i in range(1 << (N - 1)):
        st = []
        for j in range(N-1):
            st.append(S[j])
            if i >> j & 1:
                st.append("+")
        st.append(S[-1])
        a = eval("".join(st))
        if is_prime(a):
            ans += 1
    print(ans)


if __name__ == '__main__':
    main()