using System; using System.Collections.Generic; using System.Linq; public class Program{ public static void Main(){ var line = Console.ReadLine().Split(' '); var s = double.Parse(line[0]); var n = double.Parse(line[1]); if(n/s>29){ Console.WriteLine("No"); } else if(n<25){ Console.WriteLine("No"); } else{ Console.WriteLine("Yes"); } } }