using System;

class Program
{
	static void Main()
	{
		string[] input = Console.ReadLine().Split(' ');
		int A = int.Parse(input[0]);
		int B = int.Parse(input[1]);
		if(A > 2*B || B > 2*A)
		   Console.WriteLine("No");
		else
		   Console.WriteLine("Yes");
	}
}