C31231211113313112133313331311331333133313331333132322133312121   >>    C3123121111331311213331333131133133313331333133313232213331212   <<    C31231211113313112133313331311331333133313331333132322133312123   >>      C31231211113313112133313331311331333133313331333132322133312122   >>