C312312111133131212111133133313331333133312133313331333132231333231323231   >>    C31231211113313121211113313331333133313331213331333133313223133323132323   <<    C312312111133131212111133133313331333133312133313331333132231333231323233   >>      C312312111133131212111133133313331333133312133313331333132231333231323232   >>