C31231211113313121211113313331333133313331213331333133313231122323311   >>    C3123121111331312121111331333133313331333121333133313331323112232331   <<    C31231211113313121211113313331333133313331213331333133313231122323313   >>      C31231211113313121211113313331333133313331213331333133313231122323312   >>