#include <bits/stdc++.h>
using namespace std;
using ll=long long;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

int main() {
    int h,w;
    cin>>h>>w;
    int t=h*60+w;
    if(t<450)cout<<"Yes"<<endl;
    else if(t<510)cout<<"Late"<<endl;
    else cout<<"No"<<endl;
}