C31231211113313112133313331311331333133313331333133311223132321   >>    C3123121111331311213331333131133133313331333133313331122313232   <<    C31231211113313112133313331311331333133313331333133311223132323   >>      C31231211113313112133313331311331333133313331333133311223132322   >>