Calling functions

Question

Hello

I have two functions 'This' and 'Another'

If I type one of the functions in cmd it will invoke the typed function

For example; if I type 'this' it starts the functions 'this()'

But the problem is, I like that my program constantly listens to input

When the program is busy with on of the functions He waits untill the invoked function ends.

If I start the function 'this()' , I can not type my other function 'Another()' when he's still busy with the first. How I can solve this?

using System;
using System.Threading;

namespace CommandoTest
{
    class CommandTest
    {
        static void Main(string[] args)
        {
            CommandTest c = new CommandTest();

            string Command = Console.ReadLine();
            while (Command != "stop")
            {
                switch (Command)
                {
                    case "this":
                        c.This(50);
                        break;
                    case "another":
                        c.Another(50);
                        break;

                    default:
                        Console.WriteLine("Wrong input!");
                        break;
                }
                Command = Console.ReadLine();
            }

            Console.Read();
        }


        private void This(int var)
        {
            while (var >= 0)
            {
                var -= 5;
                Thread.Sleep(100);
                Console.WriteLine("You've typed 'this'");

            }
        }
        public void Another(int var)
        {
            while (var <= 110)
            {
                var += 5;
                Thread.Sleep(100);
                Console.WriteLine("You've typed 'another'");

            }
        }

    }
}