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

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

if( b == '2' ) cout << 4 << endl;
else if( b == '3' ) cout << 1 << endl;
else if( b == '?' ) cout << 14 << endl;




}