"""

"""

import sys
from sys import stdin

def is_prime(x):

    if x == 1:
        return False
    

    for y in range(2,10**10):
        if y**2 > x:
            break
        if x % y == 0:
            return False

    return True

S = list(map(int, list(input()) ))

N = len(S)

ans = 0
for i in range(2**(N-1)):

    s = 0
    now = S[0]

    for j in range(N-1):
        if 2**j & i > 0:
            now *= 10
            now += S[j+1]
        else:
            s += now
            now = S[j+1]

    s += now

    if is_prime(s):
        ans += 1

print (ans)