C31231211113313112133313331311331333133313331333133112111133133313232213232231   >>    C3123121111331311213331333131133133313331333133313311211113313331323221323223   <<    C31231211113313112133313331311331333133313331333133112111133133313232213232233   >>      C31231211113313112133313331311331333133313331333133112111133133313232213232232   >>