C312312111133131212111133133313331333133312133313331333121111113313223213331331   >>    C31231211113313121211113313331333133313331213331333133312111111331322321333133   <<    C312312111133131212111133133313331333133312133313331333121111113313223213331333   >>      C312312111133131212111133133313331333133312133313331333121111113313223213331332   >>