C31231211113313112133313331311331333133313331333133112111133132233133313123311   >>    C3123121111331311213331333131133133313331333133313311211113313223313331312331   <<    C31231211113313112133313331311331333133313331333133112111133132233133313123313   >>      C31231211113313112133313331311331333133313331333133112111133132233133313123312   >>