#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll=long long;

int main()
{
    int m,d;
    cin>>m>>d;
    if(m<8)cout<<23<<endl;
    else if(m==8&&d<22)cout<<23<<endl;
    else cout<<24<<endl;
    return 0;
}