C312312111133131212111133133313331333133312133313331313331322322231   >>    C31231211113313121211113313331333133313331213331333131333132232223   <<    C312312111133131212111133133313331333133312133313331313331322322233   >>      C312312111133131212111133133313331333133312133313331313331322322232   >>