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

int main(){
    int y, m;
    cin >> y >> m;
    int month[11] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    if (((y % 4 == 0) && (y % 100 != 0)) || (y % 400 == 0)){
        month[1] = 29;
    }
    printf("%d", month[m]);
    return 0;
}