C312312111133131212111133133313331333133312133313331333221223312331   >>    C31231211113313121211113313331333133313331213331333133322122331233   <<    C312312111133131212111133133313331333133312133313331333221223312333   >>      C312312111133131212111133133313331333133312133313331333221223312332   >>