domashka123

using System;
using System.Net.Http.Headers;

namespace testing
{
    class Program
    {
        static void Main(string[] args)
        {
            bool isUp = true;
            while (isUp)
            {
                Console.WriteLine("Type 1 or 2 or 3, 4 for exit");
                int userInput = Convert.ToInt32(Console.ReadLine());
                switch (userInput)
                {
                    case 1:
                        Console.WriteLine("one is one");
                        break;
                    case 2:
                        Console.WriteLine("two is two");
                        break;
                    case 3:
                        Console.WriteLine("three is three");
                        break;
                    case 4:
                        Console.WriteLine("Bye, see you next time!");
                        isUp = false;
                        break;
                }
            }
        }
    }
}