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

int main() {
    char c1, c2, c3;
    cin >> c1 >> c2 >> c3;
    string out;
    if(c1 == '?') {
        if(c2 == '2') out = "4";
        else out = "1";
    }
    else if(c1 == '2') {
        if(c2 == '?') out = "14";
        else out = "1";
    }
    else {
        if(c2 == '?') out = "14";
        else out = "1";
    }

    cout << out << '\n';

    return 0;
}