#include<iostream>
using namespace std;
int main(){
    int a[12]={31,28,31,30,31,30,31,31,30,31,30,31};
    int year,m;
    cin>>year>>m;
    if((year%4==0&&year%100!=0)||(year%400==0)){//判断是否是闰年
        a[1] = 29;
        cout<<a[m-1]<<endl;
    }
    else
        cout<<a[m-1]<<endl;
    return 0;
}