C312312111133131212111133133313331333133312133313331311331322323221   >>    C31231211113313121211113313331333133313331213331333131133132232322   <<    C312312111133131212111133133313331333133312133313331311331322323223   >>      C312312111133131212111133133313331333133312133313331311331322323222   >>