C31231211113313112133313331311331333133313331333133313331323321311   >>    C3123121111331311213331333131133133313331333133313331333132332131   <<    C31231211113313112133313331311331333133313331333133313331323321313   >>      C31231211113313112133313331311331333133313331333133313331323321312   >>