#include<bits/stdc++.h>
using namespace std;
int a,b,c=30,d=31,e=29,f=28;
int main(){
	cin>>a>>b;
	if(b==1){
		cout<<d;
	}
	if(b==2){
		if(a%4==0){
			cout<<e;
		}
		else 
		    cout<<f;
	}
	if(b==3){
		cout<<d;
	}
	if(b==4){
		cout<<c;
	}
	if(b==5){
		cout<<d;
	}
	if(b==6){
		cout<<c;
	}
	if(b==7){
		cout<<d;
	}
	if(b==8){
		cout<<d;
	}
	if(b==9){
		cout<<c;
	}
	if(b==10){
		cout<<d;
	}
	if(b==11){
		cout<<c;
	}
	if(b==12){
		cout<<d;
	}
	return 0;
}