#include<bits/stdc++.h>
using namespace std;
int main(){
    int a,b;
    cin >> a >> b;
    int x[12] = {31,28,31,30,31,30,31,31,30,31,30,31};
    int c = 29;
    if(a % 400 == 0 || (a % 4 == 0 && a % 100 != 0)){
    	cout << c;
	}else{
		cout << x[b - 1];
	}
    
    return 0;
}