C31232233133313221211113313331333133313331212111112111112211232313232311   >>    C3123223313331322121111331333133313331333121211111211111221123231323231   <<    C31232233133313221211113313331333133313331212111112111112211232313232313   >>      C31232233133313221211113313331333133313331212111112111112211232313232312   >>