C31231211113313121211113313331333133313331213331333133313223323211131   >>    C3123121111331312121111331333133313331333121333133313331322332321113   <<    C31231211113313121211113313331333133313331213331333133313223323211133   >>      C31231211113313121211113313331333133313331213331333133313223323211132   >>