using System;
using System.Collections.Generic;
namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
#if LocalDebug
            var exStdIn = new System.IO.StreamReader("stdin.txt");
            System.Console.SetIn(exStdIn);
#endif
            var Input1 = Console.ReadLine();
            var Input2 = Console.ReadLine();
            var Result = "YES";

            for (int i = 0; i < Input1.Length; i++)
            {
                var str = Input1[0].ToString();
                var IsExists = Input2.IndexOf(str);
                if (IsExists > 0)
                {
                    Input2.Remove(IsExists);
                }
                else
                {
                    Result = "NO";
                    break;
                }
            }

            Console.WriteLine(Result);


#if LocalDebug
            System.Console.ReadKey();
#endif
        }

        static char ShiftRight(char c, int shift)
        {
            var a = (char)(c - shift);
            if (a < 'A')
                a = (char)('Z' + 1 - ('A' - a));
            return a;
        }



        static int GetData()
        {
            return int.Parse(Console.ReadLine());
        }

        static string[] GetList()
        {
            return Console.ReadLine().Split(' ');
        }



    }
}