C31231211113313112133313331311331333133313331333133312213232321   >>    C3123121111331311213331333131133133313331333133313331221323232   <<    C31231211113313112133313331311331333133313331333133312213232323   >>      C31231211113313112133313331311331333133313331333133312213232322   >>