#include<bits/stdc++.h>
typedef long long ll;
using namespace std;
int INF = 1LL << 30;
int MOD = 1e9+7;
main(){
    string a,b,c;
    cin >> a >> b >> c;
    if(a == "?" || c == "?")cout << "4" << endl;
    else    cout << "14" << endl;
}