C31231211113313121211113313331333133313331213331333133312111112232133312232131   >>    C3123121111331312121111331333133313331333121333133313331211111223213331223213   <<    C31231211113313121211113313331333133313331213331333133312111112232133312232133   >>      C31231211113313121211113313331333133313331213331333133312111112232133312232132   >>