C31231211113313112133313331311331333133313331333132233131232311   >>    C3123121111331311213331333131133133313331333133313223313123231   <<    C31231211113313112133313331311331333133313331333132233131232313   >>      C31231211113313112133313331311331333133313331333132233131232312   >>