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

class Magatro
{
    
    static void Main()
    {
        string S = Console.ReadLine();
        for(int i = 0; i < S.Length; i++)
        {
            Console.Write(S[S.Length-1-i].ToString());
        }
        Console.WriteLine();
    }    

}