using System;

​

public class MyProgram

{

    public static void Main(String[] args)

    {

        int userInput;

        int onesPlace;

        int hundredsPlace;

        int tensPlace;

        String word1;

        String word2;

        String word3;

        int Foo;

        String result;

        input(out userInput);

        while (userInput < 0 || userInput > 999)

        {

            Console.WriteLine("This is not a number between 0 and 999 ");

            Console.WriteLine("Enter a number between 0 and 999: ");

            input(out userInput);

        }

        onesPlace = userInput % 10;

        tensPlace = (int) ((double) userInput / 10 % 10);

        hundredsPlace = (int) ((double) userInput / 100 % 10);

        word1 = onesPlace(onesPlace);

        word2 = tensPlace(tensPlace);

        word3 = hundredsPlace(hundredsPlace);

        Foo = tensPlace * 10 + onesPlace;

        if (Foo > 10 && Foo < 20)

        {

            result = teens(Foo);

        }

        else

        {

            result = tensPlace(tensPlace);

        }

        Console.WriteLine("result = " + result);

        Console.WriteLine("word1 = " + word1);

        Console.WriteLine("word2 = " + word2);

        Console.WriteLine("word3 = " + word3);

        Console.WriteLine("foo equals " + Foo);

    }

​

    private static String hundredsPlace(int c)

    {

        String result;

        result = "";

        if (c == 0)

        {

            result = "";

        }

        else

        {

            result = onesPlace(c) + " hundred";

        }

        return result;

    }

​

    private static String onesPlace(int A)

    {

        String result;

        if (A == 0)

        {

            result = "zero";

        }

        else

        {

            if (A == 1)

            {

                result = "one";

            }

            else

            {

                if (A == 2)

                {

                    result = "two";

                }

                else

                {

                    if (A == 3)

                    {

                        result = "three";

                    }

                    else

                    {

                        if (A == 4)

                        {

                            result = "four";

                        }

                        else

                        {

                            if (A == 5)

                            {

                                result = "five";

                            }

                            else

                            {

                                if (A == 6)

                                {

                                    result = "six";

                                }

                                else

                                {

                                    if (A == 7)

                                    {

                                        result = "seven";

                                    }

                                    else

                                    {

                                        if (A == 8)

                                        {

                                            result = "eight";

                                        }

                                        else

                                        {

                                            if (A == 9)

                                            {

                                                result = "nine";

                                            }

                                        }

                                    }

                                }

                            }

                        }

                    }

                }

            }

        }

        return result;

    }

​

    private static String teens(int b)

    {

        String result;

        result = "teen";

        if (b == 11)

        {

        }

        return result;

    }

​

    private static String tensPlace(int b)

    {

        String result;

        result = "";

        if (b == 10)

        {

            result = "ten";

        }

        if (b == 11)

        {

            result = "eleven";

        }

        if (b == 12)

        {

            result = "twelve";

        }

        if (b == 13)

        {

            result = "thirteen";

        }

        if (b == 14)

        {

            result = "fourteen";

        }

        if (b == 15)

        {

            result = "fifteen";

        }

        if (b == 16)

        {

            result = "sixteen";

        }

        if (b == 17)

        {

            result = "seventeen";

        }

        if (b == 18)

        {

            result = "eighteen";

        }

        if (b == 19)

        {

            result = "nineteen";

        }

        if (b == 2)

        {

            result = "twenty";

        }

        if (b == 3)

        {

            result = "thirty";

        }

        if (b == 4)

        {

            result = "fourty";

        }

        if (b == 5)

        {

            result = "fifty";

        }

        if (b == 6)

        {

            result = "sixty";

        }

        if (b == 7)

        {

            result = "seventy";

        }

        if (b == 8)

        {

            result = "eghty";

        }

        if (b == 9)

        {

            result = "ninety";

        }

        return result;

    }

    // .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 void input(out double result)

    {

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

    }

    private static void input(out int result)

    {

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

    }

    private static void input(out Boolean result)

    {

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

    }

    private static void input(out string result)

    {

        result = Console.ReadLine();

    }

}

​