#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,m;
	cin>>n>>m;
	int a[]={0,31,28,31,30,31,30,31,31,30,31,30,31};
	bool w=0;
	if(n%100==0){
		if(n%400==0) w=1;
	}
	else if(n%4==0) w=1;
	if(w&&m==2) cout<<29;
	else cout<<a[m];
	return 0;
}