interface MediaPlayer {
    void play(String fileType, String fileName);
}

interface AdvancedMediaPlayer {
    void playVlc(String fileName);
    void playMp4(String fileName);
}

class VlcPlayer implements AdvancedMediaPlayer {
    public void playVlc(String fileName) {
        System.out.println("Playing VLC: " + fileName);
    }
    public void playMp4(String fileName) {}
}

class Mp4Player implements AdvancedMediaPlayer {
    public void playMp4(String fileName) {
        System.out.println("Playing MP4: " + fileName);
    }
    public void playVlc(String fileName) {}
}

class MediaAdapter implements MediaPlayer {
    AdvancedMediaPlayer advanced;

    MediaAdapter(String fileType) {
        if (fileType.equals("vlc"))
            advanced = new VlcPlayer();
        else if (fileType.equals("mp4"))
            advanced = new Mp4Player();
    }

    public void play(String fileType, String fileName) {
        if (fileType.equals("vlc"))
            advanced.playVlc(fileName);
        else if (fileType.equals("mp4"))
            advanced.playMp4(fileName);
    }
}

class AudioPlayer implements MediaPlayer {
    MediaAdapter adapter;

    public void play(String fileType, String fileName) {
        if (fileType.equals("mp3")) {
            System.out.println("Playing MP3: " + fileName);
        } else if (fileType.equals("vlc") || fileType.equals("mp4")) {
            adapter = new MediaAdapter(fileType);
            adapter.play(fileType, fileName);
        }
    }
}

public static void main(String[] args) {
    AudioPlayer player = new AudioPlayer();
    player.play("mp3", "song.mp3");
    player.play("mp4", "video.mp4");
    player.play("vlc", "movie.vlc");
}