C312312111133131212111133133313331333133312133313331333132322211   >>    C31231211113313121211113313331333133313331213331333133313232221   <<    C312312111133131212111133133313331333133312133313331333132322213   >>      C312312111133131212111133133313331333133312133313331333132322212   >>