static void Main(string[] args)
        {
            File f = new File("file_1.doc", 256);

            Console.WriteLine(f.ToString());
            Mp3 m = new Mp3("Music.mp3", 12);

            Console.WriteLine(m.ToString());
            Archive a = new Archive("Lab4.rar", 3);

            Console.WriteLine(a.ToString());
            Directory d = new Directory("Windows");

            Console.WriteLine(d.ToString());
            d.create(f);
            d.create(f);
            d.create(m);
            d.create(a);
            d.create(m);
            d.create(m);
            Console.WriteLine(d.ToString());
            Console.WriteLine("Volume directory: " + d.GetVolume());
            int x = d.KolAudio();

            Console.WriteLine("Kolichestvo audio: " + x);
            f.RunFile();

            Directory d1 = new Directory("D1");

            d1.create(f);
            Console.WriteLine(d1.ToString());
            d.create(d1);
            Console.WriteLine(d.ToString());
        }