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

namespace ConsoleApplication1
{
    class ReverseSequence
    {
        static void Main(string[] args)
        {
            char[] charArray = System.Console.ReadLine().ToCharArray();
            for (int i = charArray.Length - 1; i >= 0; i--)
            {
                System.Console.Write(charArray[i]);
            }
        }
    }
}