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

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

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