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

void fast_io() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
}

int main() {
	fast_io();
	int m, d;
	cin >> m >> d;
	if (m < 8 || (m == 8 && d <= 21)) {
		cout << 23 << endl;
	} else {
		cout << 24 << endl;
	}
}