using System;
using System.Linq;

namespace _159
{
    class Program
    {
        static void Main(string[] args)
        {
            double[] x = Console.ReadLine().Split().Select(double.Parse).ToArray();
            double a = (1 - x[0]) * x[1];
            double b = x[0] * (1 - x[1]) * x[1];
            Console.WriteLine(a < b ? "YES" : "NO");
        }
    }
}