AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

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

using System.Text;
using System.Threading.Tasks;
using System.Diagnostics;
using System.Threading;

namespace mainSolution
{
    public class MyException : Exception
    {
        public MyException(string messege) : base(message: messege + "\n\n\n Exception founded by Decibit\n\n\n") { }
        public MyException() : base()
        {

        }
        public void Messsage()
        {
            Console.WriteLine("\n\n\n\n\n\n Invalid number, please enter a number from 1 to 12 \n\n\n\n\n\n");
        }


    }
    class Input
    {
        private static IEnumerator<string> getin()
        {
            while (true)
                foreach (string s in Console.ReadLine().Split().Where(x => x.Length > 0))
                    yield return s;
        }

        private IEnumerator<string> inp = getin();

        public string GetString() { inp.MoveNext(); return inp.Current; }
        public int GetInt() { return int.Parse(GetString()); }
        public long GetLong() { return long.Parse(GetString()); }
        public double GetDouble() { return double.Parse(GetString()); }
    }
    public class Pair<T, K>
    {
        public T First { get; set; }
        public K Second { get; set; }
    }
    static class Program
    {
        static public Input cin = new Input();
        static bool cmp(Pair<int, int> a, Pair<int, int> b)
        {
            if (a.First > b.First)
                return true;
            else
                return false;
        }
        static StringBuilder NextPermutatuin(StringBuilder s, int shift)
        {
            shift = 'о' - 'а' - shift;
            StringBuilder res = new StringBuilder();
            for (int i = 0; i < s.Length; i++)
            {
                if (s[i] == ' ')
                {
                    res.Append(' ');
                    continue;
                }
                res.Append(Convert.ToChar(s[i] + shift));
            }
            return res;
        }
        static void Main(string[] args)
        {
            List<Pair<int, int>> cnt = new List<Pair<int, int>>(101);
            for (int i = 0; i < 100; i++)
            {
                cnt.Add(new Pair<int, int> ());
                cnt[i] = new Pair<int, int>();
                cnt[i].Second = i;
            }
            //int sh = 2;
            string t = Console.ReadLine();
            StringBuilder s = new StringBuilder();
            for (int i = 0; i < t.Length; ++i)
            {
                s[i] = t[i];
            }
            /*
            for (int i = 0; i < t.Length; i++)
            {
                if (t[i] == ' ')
                {
                    s.Append(' ');
                    continue;
                }
                s.Append(Convert.ToChar(t[i] + sh));
            }
            */
            for (int i = 0; i < s.Length; i++)
            {
                char c = char.ToLower(s[i]);
                int d = c - 'а';
                if (char.IsLetter(c))
                {
                    cnt[c - 'а'].First++;
                }
            }
            cnt.Sort((y, x) => x.First.CompareTo(y.First));

            int k = 0;
           /* for (int i = 0; i < 8; i++)
            { Console.WriteLine($"{cnt[i].First} {Convert.ToChar(cnt[i].Second + 'а')}"); };
            */
            StringBuilder ans = NextPermutatuin(s, cnt[k++].Second);
            Console.WriteLine($"ans = {ans}");
            Console.WriteLine("enter \"1\" if text is done else enter any key");
            ConsoleKeyInfo cki = Console.ReadKey();

            while (cki.KeyChar != '1')
            {
                ans = NextPermutatuin(s, cnt[k++].Second);
                Console.WriteLine($"ans = {ans}");
                Console.WriteLine("enter \"1\" if text is done else enter any key");
                cki = Console.ReadKey();

            }
            Console.WriteLine($"ans = {ans}");

        }


    }
}