C31232233133313221211113313331333133313331212111112111133121111131311133311211   >>    C3123223313331322121111331333133313331333121211111211113312111113131113331121   <<    C31232233133313221211113313331333133313331212111112111133121111131311133311213   >>      C31232233133313221211113313331333133313331212111112111133121111131311133311212   >>