using System;

​

public class MyProgram

{

    public static void Main(string[] args)

    {

        string num;

        int numInt;

        string a;

        string b;

        string c;

        int flip;

        int newNum;

        int newFlip;

        string a2;

        string b2;

        string c2;

        int newAdd;

        output("1089 is the magic number. Just wait and see!" + "\n");

        output("Please enter a 3 digit number where the digits decrease from left to right:" + "\n");

        num = inputText();

        numInt = Convert.ToInt32(num);

        a = Convert.ToString(numInt / 100 % 10);

        b = Convert.ToString(numInt / 10 % 10);

        c = Convert.ToString(numInt % 10);

        flip = Convert.ToInt32(c + b + a);

        newNum = numInt - flip;

        a2 = Convert.ToString(newNum / 100 % 10);

        b2 = Convert.ToString(newNum / 10 % 10);

        c2 = Convert.ToString(newNum % 10);

        newFlip = Convert.ToInt32(c2 + b2 + a2);

        newAdd = newNum + newFlip;

        output("Your number is: " + numInt + "\n");

        output(numInt + " - " + flip + " = " + newNum + "\n");

        output(newNum + " + " + newFlip + " = " + newAdd + "\n");

        output("And like magic, you get " + newAdd + "!" + "\n");

    }

    //' .NET can only read single characters or entire lines from the console.

    //' The following functions are designed to help input specific data types.

    private static double inputValue()

    {

        double result;

        while (!double.TryParse(Console.ReadLine(), out result));

        return result;

    }

    private static string inputText()

    {

        return Console.ReadLine();

    }

    private static void output(string text)

    {

        Console.WriteLine(text);

    }

}

​