/* -*- coding: utf-8 -*-
 *
 * 1747.cc:  No.1747 Many Formulae 2 - yukicoder
 */

#include<cstdio>
#include<cstring>
#include<algorithm>
 
using namespace std;

/* constant */

const int MAX_N = 10;
const int MAX_K = MAX_N - 1;
const int KBITS = 1 << MAX_K;

/* typedef */

typedef long long ll;

/* global variables */

char s[MAX_N + 4];

/* subroutines */

bool isprime(ll x) {
  for (int p = 2; (ll)p * p <= x; p++)
    if (x % p == 0) return false;
  return true;
}

/* main */

int main() {
  scanf("%s", s);
  int n = strlen(s);
  int k = n - 1, kbits = 1 << k;

  int cnt = 0;
  for (int bits = 0; bits < kbits; bits++) {
    ll sum = 0, c = s[0] - '0';
    for (int i = 0, bi = 1; i < k; i++, bi <<= 1) {
      if (bits & bi) sum += c, c = s[i + 1] - '0';
      else c = c * 10 + (s[i + 1] - '0');
    }
    sum += c;
    //printf("%lld\n", sum);

    if (isprime(sum)) cnt++;
  }

  printf("%d\n", cnt);
  return 0;
}