C31231211113313112133313331311331333133313331333133112111113232233131   >>    C3123121111331311213331333131133133313331333133313311211111323223313   <<    C31231211113313112133313331311331333133313331333133112111113232233133   >>      C31231211113313112133313331311331333133313331333133112111113232233132   >>