#include <iostream>
using namespace std;

int M, D;

int main() {
    cin >> M >> D;
    if (M < 8)
        cout << 23 << endl;
    else if (M == 8) {
        if (D < 22)
            cout << 23 << endl;
        else
            cout << 24 << endl;
    } else
        cout << 24 << endl;
    return 0;
}