C312312111133131212111133133313331333133312133313331333131232321111   >>    C31231211113313121211113313331333133313331213331333133313123232111   <<    C312312111133131212111133133313331333133312133313331333131232321113   >>      C312312111133131212111133133313331333133312133313331333131232321112   >>