#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, n) for(int i = 0; i < (n); i++)
#define rep1(i, n) for(int i = 1; i <= (n); i++)
#define co(x) cout << (x) << "\n"
#define cosp(x) cout << (x) << " "
#define ce(x) cerr << (x) << "\n"
#define cesp(x) cerr << (x) << " "
#define pb push_back
#define mp make_pair
#define Would
#define you
#define please

int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);


	char C[3];
	rep(i, 3) cin >> C[i];

	if (C[0] == '?') {
		if (C[1] == '2') co(4);
		else co(1);
	}
	else if (C[2] == '?') {
		if (C[1] == '2') co(4);
		else co(1);
	}
	else {
		co(14);
	}


	Would you please return 0;
}