C312312111133131212111133133313331333133312133313331333132213213231   >>    C31231211113313121211113313331333133313331213331333133313221321323   <<    C312312111133131212111133133313331333133312133313331333132213213233   >>      C312312111133131212111133133313331333133312133313331333132213213232   >>