C31231211113313112133313331311331333133313331333132322133323221   >>    C3123121111331311213331333131133133313331333133313232213332322   <<    C31231211113313112133313331311331333133313331333132322133323223   >>      C31231211113313112133313331311331333133313331333132322133323222   >>