#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <stack>
#include <algorithm>
#include <string>
#include <map>
#include <iterator>
#include <set>
#include <queue>
#include <bitset>
#include <cassert>

using namespace std;

bool kadomatu(int c1, int c2, int c3) {
    return (c2 > c1 and c2 > c3) or (c1 > c2 and c3 > c2);
}


int main() {

    char c1, c2, c3;
    cin >> c1 >> c2 >> c3;

    vector<int> vs = {1, 4};

    if (c1 == '?' or c2 == '?') {
        if (c2 == '3') {
            cout << 1 << endl;
        } else if (c2 == '2') {
            cout << 4 << endl;
        }
    } else  {
        cout << "14" << endl;
    }

    return 0;
}