#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using Graph = vector<vector<int> >;

#define rep(i, a, b) for(int i = a; i < b; i++)
#define rrep(i, a, b) for(int i = a; i >= b; i--)
#define fore(i, a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()

const int INFI = 1 << 30;
const ll INFL = 1LL << 60;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    auto is_prime = [](ll n) {
        if (n == 1) return false;
        for (ll i = 2; i * i <= n; i++) {
            if (n % i == 0) {
                return false;
            }
        }
        return true;
    };

    string s; cin >> s;
    reverse(all(s));
    int m = s.size() - 1;
    ll n = stoll(s);

    int ans = 0;
    rep(bit, 0, 1 << m) {
        ll n1 = n;
        ll tmp2 = 0, tmp1 = 0;
        rep(i, 0, m) {
            tmp1 += n1 % 10;
            if ((1 << i) & bit) {
                tmp2 += tmp1;
                tmp1 = 0;
            }
            else {
                tmp1 *= 10;
            }
            n1 /= 10;
        }
        tmp2 += tmp1 + n1;
        if (is_prime(tmp2)) ans++;
    }

    cout << ans << "\n";
}