#include <bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
#define ALL(obj) (obj).begin(), (obj).end()
#define rALL(obj) (obj).rbegin(), (obj).rend()
using ll = long long;
// cout << fixed << setprecision(10)

int main() {
  string S;
  cin >> S;
  int N = S.size();

  auto isPrime = [](ll n) {
    if(n < 2) return false;
    for (ll i = 2; i*i <= n; i++) {
      if(n%i == 0) return false;
    }
    return true;
  };

  int ans = 0;
  for (int i = 0; i < (1 << N-1); i++) {
    ll res = 0;
    string m;
    for (int j = 0; j < N; j++) {
      if(j == N-1) {
        m += S[j];
        res += stoll(m);
        break;
      }
      m += S[j];
      if(i & (1 << j)) {
        res += stoll(m);
        m.clear();
      }
    }

    if(isPrime(res)) ans++;
  }
  cout << ans << endl;
  return 0;
}