C31231211113313112133313331311331333133313331333132313331322321   >>    C3123121111331311213331333131133133313331333133313231333132232   <<    C31231211113313112133313331311331333133313331333132313331322323   >>      C31231211113313112133313331311331333133313331333132313331322322   >>