using System;

public class Program

{

    public static void Main()

    {

        string str_1, Revstr_1 = "";

        Console.Write("Enter a string : ");

​

        str_1 = Console.ReadLine();

​

        for (int i = str_1.Length - 1; i >= 0; i--)

        {

            Revstr_1+=str_1[i].ToString();

        }

        if (Revstr_1==str_1)

        {

            Console.WriteLine("String is Palindrome.");

        }

        else

        {

            Console.WriteLine("String is not Palindrome. Please enter again.");

        }

​

​

    }

}