#include<bits/stdc++.h>
using namespace std;
int M[13];
int main(){
	M[1]=31;M[2]=28;M[3]=31;M[4]=30;
	M[5]=31;M[6]=30;M[7]=31;M[8]=31;
	M[9]=30;M[10]=31;M[11]=30;M[12]=31;
	int y,m;
	cin >> y >> m;
	if(m=2){
		if((y%4==0&&y%100!=0)||y%400==0){
			cout << M[m]+1;
		}else{
			cout << M[m];
		}
	}else{
		cout << M[m];
	}
	return 0;
}