#include<iostream>
#include<string>
#include<algorithm>
#include<cctype>
#include<set>
#include<bitset>
#include<math.h>
#include<map>
#include<queue>
using namespace std;

int main(){
    int h, m, t;
    cin >> h >> m;
    t = h * 60 + m;

    if (t < 450) cout << "Yes" << endl;
    else if (t >= 450 && t < 510) cout << "Late" << endl;
    else cout << "No" << endl; 
}