static void Main(string[] args)
        {
            do
            {
                Print.Menu();

                var option = Decision.CheckingIfTheUserEnteredANumber();

                switch (option)
                {
                case 1:
                    Print.List();
                    break;

                case 2:
                    Find.ANameByAnOrderNumber();
                    break;

                case 3:
                    Find.AnOrderNumberByAName();
                    break;

                case 4:
                    Add.NewSong();
                    break;

                case 5:
                    Remove.ASongByOrderNumber();
                    break;

                case 6:
                    Remove.ASongByName();
                    break;

                case 7:
                    DataStore.PlayList.Clear();
                    break;

                case 8:
                    Edit.ASongName();
                    break;

                case 9:
                    Exchange.Positions();
                    break;

                case 0:
                    Environment.Exit(0);
                    break;

                case 10:
                    Shuffle.Songs();
                    break;

                default:
                    Console.WriteLine("Niste upisali dobar broj");
                    break;
                }
                Console.WriteLine();
                Console.WriteLine();
            }while (true);
        }