#include <iostream>

using namespace std;

int main () {
    int M, D; cin >> M >> D;
    if (8 < M) {
        cout << 24 << "\n";
        return 0;
    }

    if (M == 8) {
        if (22 <= D) {
            cout << 24 << "\n";
            return 0;
        }
    }

    cout << 23 << "\n";
}