C31231211113313121211113313331333133313331213331333133313231123321   >>    C3123121111331312121111331333133313331333121333133313331323112332   <<    C31231211113313121211113313331333133313331213331333133313231123323   >>      C31231211113313121211113313331333133313331213331333133313231123322   >>