C31231211113313112133313331311331333133313331333133312111133132322331311   >>    C3123121111331311213331333131133133313331333133313331211113313232233131   <<    C31231211113313112133313331311331333133313331333133312111133132322331313   >>      C31231211113313112133313331311331333133313331333133312111133132322331312   >>