using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        string s,revs;

        revs = string.Empty;

        Console.WriteLine("Enter String: ");

        s = Console.ReadLine().ToString();

        for(int i = s.Length - 1;i >= 0; i--){

            revs += s[i].ToString();

        }

        if(s == revs){Console.WriteLine("Palindrome");}

        else {Console.WriteLine("Not a Palindrome");}

        Console.WriteLine("Text entered was: " + revs);

    }

}