C31231211113313112133313331311331333133313331333133313132322113231   >>    C3123121111331311213331333131133133313331333133313331313232211323   <<    C31231211113313112133313331311331333133313331333133313132322113233   >>      C31231211113313112133313331311331333133313331333133313132322113232   >>