Number English Pronunciation

/*
 * * Write a program that converts a number in the range [0...999] to a text corresponding to its English pronunciation. Examples:
    0  "Zero"
    273  "Two hundred seventy three"
    400  "Four hundred"
    501  "Five hundred and one"
    711  "Seven hundred and eleven"
*/

using System;

class NumberEnglishPronunciation
{
    static void Main()
    {
        while (true)
        {
            int number, hundreds = 0, tens = 0, digit = 0;
            string numberTxt = "0";

            string[] numbersTo19Text = { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine",
                                       "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen"};
            string[] numbersTo100Text = { "", "", "twenty", "thirty", "fourty", "fifty", "sixty", "seventy", "eighty", "ninety" };


            number = InputData();

            hundreds = number / 100 % 10;
            tens = number / 10 % 10;
            digit = number % 10;

            if (number < 20)
            {
                numberTxt = numbersTo19Text[number];
            }
            else if (number >= 20 && number < 100)
            {
                if (digit != 0)
                {
                    numberTxt = numbersTo100Text[tens] + " " + numbersTo19Text[digit];
                }
                else
                {
                    numberTxt = numbersTo100Text[tens];
                }
            }
            else if (number != 100 && number != 200 && number != 300 && number != 400 && number != 500 && number != 600 && number != 700 && number != 800 && number != 900)
            {
                if (tens != 0 && tens > 1)
                {
                    numberTxt = numbersTo19Text[hundreds] + " hundred and " + numbersTo100Text[tens] + " " + numbersTo19Text[digit];
                }
                else
                {
                    numberTxt = numbersTo19Text[hundreds] + " hundred and " + numbersTo19Text[tens*10+digit];
                }
            }
            else
            {
                numberTxt = numbersTo19Text[hundreds] + " hundred";
            }

            OutputData(numberTxt);
        }
    }


    static int InputData()
    {
        int number;
        string invalidInput = "Please enter a value between 0 and 999" + Environment.NewLine;
        Console.WriteLine("Enter a number: ");
        while (!(int.TryParse(Console.ReadLine(), out number) && number >= 0 && number <= 999))
        {
            Console.WriteLine(invalidInput);
            Console.WriteLine("Enter a number: ");
        }
        return number;
    }

    static void OutputData(string numberTxt)
    {
        Console.WriteLine("Result: {0}" + Environment.NewLine, numberTxt);
    }

}