using System;
using System.Collections.Generic;
using System.Text;

class Program
{
	static void Main(string[] args)
	{
		No138.Proc();
	}
}

public class No138
{
	public static void Proc()
	{
		int OldVersion = Convert.ToInt32(Console.ReadLine().Replace(".", ""));
		int Version = Convert.ToInt32(Console.ReadLine().Replace(".", ""));

		if (OldVersion >= Version)
			Console.WriteLine("YES");
		else
			Console.WriteLine("NO");
	}
}