using System;

public class Hello
{
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var h = int.Parse(line[0]);
        var m = int.Parse(line[1]);
        getAns(h, m);
    }
    static int calc(int h, int m, int s) => h * 3600 + m * 60 + s;
    static void getAns(int h, int m)
    {
        var start = calc(7, 30, 0);
        var end = calc(8, 30, 0);
        var wake = calc(h, m, 30);
        string ans;
        if (wake > end) ans = "No";
        else if (wake < start) ans = "Yes";
        else ans = "Late";
        Console.WriteLine(ans);
    }
}