C31231211113313112133313331311331333133313331333133313311221333132311   >>    C3123121111331311213331333131133133313331333133313331331122133313231   <<    C31231211113313112133313331311331333133313331333133313311221333132313   >>      C31231211113313112133313331311331333133313331333133313311221333132312   >>