C31231211113313112133313331311331333133313331333133313331333132213231321   >>    C3123121111331311213331333131133133313331333133313331333133313221323132   <<    C31231211113313112133313331311331333133313331333133313331333132213231323   >>      C31231211113313112133313331311331333133313331333133313331333132213231322   >>