#include<bits/stdc++.h>
#define int long long
using namespace std;
int q,w,e[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
signed main()
{
	cin>>q>>w;
	if(q%100==0)
	if(q%400==0)
	e[2]=29;
	if(q&100!=0)
	if(q%4==0)
	e[2]=29;
	cout<<e[w];
	return 0;
}