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

class Program
{
    static void Main()
    {
        var inpAlph = Console.ReadLine();
        var charNotAlph = new List<char>();
        var charAlph = new List<char>();
        var result = new List<char>();

        foreach(var x in "abcdefghijklmnopqrstuvwxyz")
        {
            if (inpAlph.Contains(x))
            {
                continue;
            }
            else
            {
                charNotAlph.Add(x);
            }
        }
        foreach(var i in inpAlph)
        {
            if (charAlph.Contains(i))
            {
                result.Add(i);
            }
            else
            {
                charAlph.Add(i);
            }
        }

        string S = String.Join("", result);
        string T = String.Join("", charNotAlph);
        
        Console.WriteLine($"{T}to{S}");
        
    }
}