using System;

public class Program

{

    public static void Main()

    {

        // creates two strings to hold the origal sting and the inverse of the original string.

        string input = "", reverse = "";  

       //prompts the user for input

        Console.WriteLine("Enter a String"); 

        // Takes a string from the user

        input = Console.ReadLine();

        // Uses a for loop to gives you a number that represents how long the string is. Subracting 1 from that number starts the loop on that last character of the string

        for (int L = input.Length -1; L>=0; L--) 

        {

            // adds each character from the original string to the new string each time the loop runs. The loop starts with the last character in the original string.

            reverse = reverse + input[L]; 

        }

        // Prints the new string

        Console.WriteLine(reverse);

        // keeps the console window from closing in visual studio.

        Console.ReadLine(); 

    }

}

​