C31231211113313121211113313331333133313331213331333133313222332133231   >>    C3123121111331312121111331333133313331333121333133313331322233213323   <<    C31231211113313121211113313331333133313331213331333133313222332133233   >>      C31231211113313121211113313331333133313331213331333133313222332133232   >>