using System;

public class Program

{

    public static void Main()

    {

        /*

        while loop example

        keep going until user says stop

        int counter = 27; -- od czego ma zacząć

        while ( counter >= 0 ) -- kiedy ma skonczyc

        {

            Console.WriteLine($"{counter}");

            counter-=3; - co ma robic

        */

​

        int counter = 27;

        while ( counter >= 0 )

        {

            Console.WriteLine($"{counter}");

            counter-=3;

        }

    }

}