using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        string[] inputArray = Console.ReadLine().Trim().Split();
        HashSet<char> firstWord = new HashSet<char>(inputArray[0]);
        HashSet<char> secondWord = new HashSet<char>(inputArray[1]);
        Console.WriteLine((firstWord.Count == secondWord.Count) ? "true" : "false");
    }
}