C31232233133313221211113313331333133313331212111112111133223123231   >>    C3123223313331322121111331333133313331333121211111211113322312323   <<    C31232233133313221211113313331333133313331212111112111133223123233   >>      C31232233133313221211113313331333133313331212111112111133223123232   >>