using System;

public class Hello
{
    public static void Main()
    {
        var score = new int[2];
        for (int i = 0; i < 2; i++)
        {
            string[] line = Console.ReadLine().Trim().Split('.');
            var a = int.Parse(line[0]);
            var b = int.Parse(line[1]);
            var c = int.Parse(line[2]);
            score[i] = 102 * 102 * a + 102 * b + c;
        }
        Console.WriteLine(score[0] >= score[1] ? "YES":"NO");
    }
}