C312312111133131212111133133313331333133312133313331333132221112311   >>    C31231211113313121211113313331333133313331213331333133313222111231   <<    C312312111133131212111133133313331333133312133313331333132221112313   >>      C312312111133131212111133133313331333133312133313331333132221112312   >>