#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <string>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <stdio.h>
using namespace std;
#define int long long
int MOD = 1000000007;
signed main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	char a, b, c;
	cin >> a >> b >> c;
	if (a == '?')swap(a, c);
	if (b == '?') {
		cout << 14 << endl;
	}
	else {
		if (a > b) {
			cout << 4 << endl;
		}
		else {
			cout << 1 << endl;
		}
	}
}