using System;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("ENTER A NUMBER");

        int num = Int32.Parse(Console.ReadLine());

        switch (num)

        {

            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;

            default:

                Console.WriteLine("INVALID INPUT TRY AGAIN");

                break;

        }

    }

}