#include <bits/stdc++.h>

using namespace std;

int main() {
    char a, b, c;
    cin >> a >> b >> c;

    int ans;
    switch (b) {
        case '2':
            ans = 4;
            break;
        case '3':
            ans = 1;
            break;
        case '?':
            ans = 14;
            break;
        default:
            break;
    }

    cout << ans << endl;
    return 0;
}