using System;
using System.Numerics;
using System.Linq;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using System.Globalization;
using System.IO;


namespace ConsoleApplication1
{
	class Program
	{
		static void Main(string[] args)
		{
			string[] words = Console.ReadLine ().Split ();
			char[] first = words [0].ToCharArray ();
			char[] second = words [1].ToCharArray ();

			var list1 = new List<char> ();
			var list2 = new List<char> ();

			for (int i = 0; i < first.Length; i++) {
				if (!list1.Any(x => x == first[i])) {
					list1.Add (first [i]);
				}
			}
			for (int i = 0; i < second.Length; i++) {
				if (!list2.Any(x => x == second[i])) {
					list2.Add (second [i]);
				}
			}
			if (list1.Count == list2.Count)
				Console.WriteLine ("true");
			else
				Console.WriteLine ("false");
		}
	}
}