Read Number Write in Words BG

using System;

class Program
{
    static void Main()
    {
        string[,] strNum = {
                               {"нула","едно","две","три","четири","пет","шест","седем","осем","девет"},
                               {"десет","единадесет","дванадесет","тринадесет","четиринадесет","петнадесет","шестнадесет","седемнадесет","осемнадесет","деветнадесет"},
                               {"двадесет","тридесет","четиридесет","петдесет","шестдесет","седемдесет","осемдесет","деветдесет","сто","двеста"},
                           };

        Console.Write("Enter number from 0 to 999: ");
        int number = int.Parse(Console.ReadLine());
        if (number >= 0 && number < 1000)
        {
            if (number > 399)        //400 to 999
            {
                Console.Write("{0}стотин ", strNum[0, (number / 100)]);
            }
            else if (number > 199 && number < 400)      //200 to 399
            {
                Console.Write("{0}ста ", strNum[0, (number / 100)]);
            }
            else if (number > 99 && number < 200)   //100 to 199
            {
                Console.Write("Сто ");
            }
            if (number % 100 > 9 && number % 100 < 20 && number > 99) //Tens from 11 to 19
            {
                Console.Write("и {0}", strNum[1, (number % 10)]);
            }
            if (number % 100 > 19 && number > 99) //Tens 20 to 99
            {
                if ((number % 100) % 10 != 0)  //Tens + units
                {
                    Console.WriteLine("{0} и {1}", strNum[2, (((number / 10) % 10) - 2)], strNum[0, (number % 10)]);

                }
                else            //Only tens over 19
                {
                    Console.WriteLine("и {0} ", strNum[2, (((number / 10) % 10) - 2)]);
                }
            }
            if (number < 100)
            {
                if (number > 19) //Two digit numbers
                {
                     Console.Write("{0} ", strNum[2, (number / 10) - 2]); //Tens
                     if (number % 10 != 0)
                     {
                         Console.WriteLine("и {0}", strNum[0, (number % 10)]); //Units
                     }
                     else
                     {
                         Console.WriteLine();
                     }
                }
                else if (number > 9 && number < 20)   //10 to 19
                {
                    Console.WriteLine("{0}", strNum[1, (number % 10)]);
                }
                else
                {
                    Console.WriteLine("{0}", strNum[0, number]);  //1 digit number
                }
            }


        }
        else
        {
            Console.WriteLine("Wrong number!");
        }
    }
}