#include<bits/stdc++.h>
using namespace std;
bool rn(int i){
    if(i%100==0)
        if(i%400==0)    return 1;
        else return 0;
    else
        if(i%4==0)   return 1;
        else     return 0;
           
}
long long n,m,s,a[13]={0,31,28,31,30,31,31,31,31,30,31,30,31};
int main(){
    cin>>n>>m;
    if(rn(n)) a[2]=29;
    cout<<a[m];
    return 0;
}