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

namespace yukicoder
{
    class Program
    {
        static void Main(string[] args)
        {
            string x = Console.ReadLine();
            string y = Console.ReadLine();
            int f = 1;
            for(int i = 0; i < y.Length && f == 1; i++)
            {
                f = 0;
                for (int j =0;j < x.Length && f == 0; j++)
                {
                    if(x[j] == y[i])
                    {
                        x = x.Remove(j, 1);
                        j--;
                        f = 1;
                    }
                }
            }

            if (f == 1)
            {
                Console.WriteLine("{0}", "YES");
            }
            else
            {
                Console.WriteLine("{0}", "NO");
            }
            Console.ReadLine();

        }

    }
}