C31231211113313121211113313331333133313331213331333133322122231   >>    C3123121111331312121111331333133313331333121333133313332212223   <<    C31231211113313121211113313331333133313331213331333133322122233   >>      C31231211113313121211113313331333133313331213331333133322122232   >>