#include<bits/stdc++.h>
using namespace std;
int main()
{
	int y,m;
	cin>>y>>m;
	int md[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
	if((y%4==0 || y%400==0) && (m==2)){
		md[2]=29;
		cout<<md[m];
	}else{
		cout<<md[m];
	}
}