using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(" enter the input string");

        string input = Console.ReadLine();

        string reverse = string.Empty;

        int length = input.Length-1;

        while( length >= 0)

        {

            reverse = reverse + input[length];

            length--;

        }

        Console.WriteLine("reversed string is: {0}", reverse);

        if(input == reverse)

        {

            Console.WriteLine(" Palindrome string");

        }

        else

        {

            Console.WriteLine(" not Palindrome string");

        }

    }

}