#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define pb push_back
#define mp make_pair
#define rep(i,n) for(int i=0;i<(n);++i)

int main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	char c1,c2,c3;cin >> c1 >> c2 >> c3;
	if(c1=='?' || c3=='?'){
		if(c2=='2') cout << 4 << endl;
		else cout << 1 << endl;
	}
	else cout << 14 << endl;
}