#include <bits/stdc++.h>

using namespace std;

int main()
{
    int x, y;
    cin >> x >> y;

    int Days[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

    if ((x % 4 == 0 && x % 100 > 0) || (x % 400) == 0)
    {
        Days[1] = 29;
    }
    cout << Days[y - 1] << endl;
    return 0;
}