C312312111133131212111133133313331333133312133313331333131133223323131   >>    C31231211113313121211113313331333133313331213331333133313113322332313   <<    C312312111133131212111133133313331333133312133313331333131133223323133   >>      C312312111133131212111133133313331333133312133313331333131133223323132   >>