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

namespace yukicoder
{
    class yc
    {
        static void Main()
        {
            string[] str1 = Console.ReadLine().Split('.');
            string[] str2 = Console.ReadLine().Split('.');
            int[] kaseki = new int[3];
            int[] judge = new int[3];
            double ksum = 0,jsum = 0;
            double powten = 1;
            double[] kd = new double[3];
            double[] jd = new double[3];

            for (int i = 0; i < 3; i++)
            {
                kaseki[i] = int.Parse(str1[i]);
                judge[i] = int.Parse(str2[i]);
            }

            for (int i = 0; i < 3; i++)
            {
                kd[i] = kaseki[i];
                jd[i] = judge[i];
                for (int j = 1; j < kaseki.Length - i; j++)
                {
                    powten *= 10;
                }
                for (int k = 0; k < kaseki[i].ToString().Length-1; k++)
                {
                    kd[i] = kd[i] / 10;
                }
                for (int m = 0; m < judge[i].ToString().Length - 1; m++)
                {
                    jd[i] = jd[i] / 10;
                }
                ksum += kd[i] * powten;
                jsum += jd[i] * powten;
                powten = 1;
            }
            if (ksum < jsum) Console.WriteLine("NO");
            else Console.WriteLine("YES");
        }
    }
}