Number0to100ToText

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _16.Number_0_to_100_to_Text
{
    class Number0to100ToText
    {
        static void Main(string[] args)
        {


            int number = int.Parse(Console.ReadLine());
            int majorNum = number / 10;
            int remainder = number % 10;

            string[] majors = new string[] { "twenty", "thirty", "fourty", "fifty", "sixty", "seventy", "eighty", "ninety" };
            string[] singles = new string[] { "one", "two", "three", "four", "five", "six", "seven", "eight", "nine" };

            if (number < 0 || number > 100)
            {
                Console.WriteLine("invalid number");
            }


            switch (number)
            {
                case 0: Console.WriteLine("zero"); break;
                case 1: Console.WriteLine("one"); break;
                case 2: Console.WriteLine("two"); break;
                case 3: Console.WriteLine("three"); break;
                case 4: Console.WriteLine("four"); break;
                case 5: Console.WriteLine("five"); break;
                case 6: Console.WriteLine("six"); break;
                case 7: Console.WriteLine("seven"); break;
                case 8: Console.WriteLine("eight"); break;
                case 9: Console.WriteLine("nine"); break;
                case 10: Console.WriteLine("ten"); break;
                case 11: Console.WriteLine("eleven"); break;
                case 12: Console.WriteLine("twelve"); break;
                case 13: Console.WriteLine("thirteen"); break;
                case 14: Console.WriteLine("fourteen"); break;
                case 15: Console.WriteLine("fifteen"); break;
                case 16: Console.WriteLine("sixteen"); break;
                case 17: Console.WriteLine("seventeen"); break;
                case 18: Console.WriteLine("eighteen"); break;
                case 19: Console.WriteLine("nineteen"); break;
                case 20: Console.WriteLine("twenty"); break;
                case 30: Console.WriteLine("thirty"); break;
                case 40: Console.WriteLine("fourty"); break;
                case 50: Console.WriteLine("fifty"); break;
                case 60: Console.WriteLine("sixty"); break;
                case 70: Console.WriteLine("seventy"); break;
                case 80: Console.WriteLine("eighty"); break;
                case 90: Console.WriteLine("ninety"); break;
                case 100: Console.WriteLine("one hundred"); break;
                default:
                    break;
            }


            switch (majorNum)
            {
                case 2: Console.WriteLine("{0} {1}", majors[majorNum - 2], singles[remainder - 1]); break;
                case 3: Console.WriteLine("{0} {1}", majors[majorNum - 2], singles[remainder - 1]); break;
                case 4: Console.WriteLine("{0} {1}", majors[majorNum - 2], singles[remainder - 1]); break;
                case 5: Console.WriteLine("{0} {1}", majors[majorNum - 2], singles[remainder - 1]); break;
                case 6: Console.WriteLine("{0} {1}", majors[majorNum - 2], singles[remainder - 1]); break;
                case 7: Console.WriteLine("{0} {1}", majors[majorNum - 2], singles[remainder - 1]); break;
                case 8: Console.WriteLine("{0} {1}", majors[majorNum - 2], singles[remainder - 1]); break;
                case 9: Console.WriteLine("{0} {1}", majors[majorNum - 2], singles[remainder - 1]); break;
                default:
                    break;
            }



        }
    }
}