using System;

public class Program

{

    public static void Main()

    {

            Console.WriteLine("Please witre the text which you want to backward reverse:");

            string text = Console.ReadLine();

​

            int textLength = text.Length;

​

            for (int i = textLength-1; i >= 0; i--)

            {

                Console.Write(text[i]);

            }

            Console.ReadLine();

    }

}