struct Menu
        {
            private Dictionary<int, string> list;
            public NoweMenu(Dictionary<int, string> opcje_wyboru) => list = opcje_wyboru;

            private void Print(int selected = 1)
            {
                Console.Clear();
                foreach (var item in list)
                {
                    if (selected == item.Key)
                    {
                        Console.ForegroundColor = ConsoleColor.Red;
                        Console.Write("> ");
                        Console.ResetColor();
                    }
                    else Console.Write("  ");
                    Console.WriteLine(item.Key.ToString() + ". " + item.Value);
                }
            }
            public int Get()
            {
                int selected = 1;
                bool done = true;
                ConsoleKey key;
                while(done)
                {
                    Print(selected);
                    key = Console.ReadKey().Key;
                    if (key == ConsoleKey.UpArrow)
                    {
                        if (selected == 1) selected = list.Count;
                        else selected--;
                    }
                    else if (key == ConsoleKey.DownArrow)
                    {
                        if (selected == list.Count) selected = 1;
                        else selected++;
                    }
                    else if (key == ConsoleKey.Enter) done = false;
                }
                return selected;
            }
        }