C312312111133131212111133133313331333133312133313331333112122331   >>    C31231211113313121211113313331333133313331213331333133311212233   <<    C312312111133131212111133133313331333133312133313331333112122333   >>      C312312111133131212111133133313331333133312133313331333112122332   >>