using System;

public class Program

{

    public static void Main()

    {

        string str = "Hello World"; 

        string reversedString = ""; 

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

        {

            reversedString += str[i]; 

        }

        Console.WriteLine("Reversed String: " + reversedString);

    }

}