#include <iostream>
using namespace std;
int main()
{
	int a, b;
	cin >> a >> b;
	int n[12] = { 31,28,31,30,31,30,31,31,30,31,30,31 };
	if ( a % 400 == 0 || a % 4 == 0 && a % 100 != 0)
		n[2] = 29;
	cout << n[b-1] << endl;
	return 0;
}