#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using llu = long long unsigned;

vector<ll> dx = { 0, 0, -1, 1};
vector<ll> dy = {-1, 1,  0, 0};

#define MOD 1000000007
int main() {
    char c1, c2, c3;
    cin >> c1 >> c2 >> c3;
    string ret;
    if (c1 == '?') {
        if (c2 == '2') {
            ret = "4";
        } else {
            ret = "1";
        }
    }
    if (c2 == '?') {
        ret = "14";
    }
    if (c3 == '?') {
        if (c1 == '2') {
            ret = "1";
        } else {
            ret = "4";
        }
    }
    cout << ret << endl;
    return 0;
}