C312312111133131212111133133313331333133312133313113313331333221323222131   >>    C31231211113313121211113313331333133313331213331311331333133322132322213   <<    C312312111133131212111133133313331333133312133313113313331333221323222133   >>      C312312111133131212111133133313331333133312133313113313331333221323222132   >>