C31231211113313112133313331311331333133313331333133313331333131212131   >>    C3123121111331311213331333131133133313331333133313331333133313121213   <<    C31231211113313112133313331311331333133313331333133313331333131212133   >>      C31231211113313112133313331311331333133313331333133313331333131212132   >>