C31231211113313112133313331311331333133313331333133313331333133313112113113211   >>    C3123121111331311213331333131133133313331333133313331333133313331311211311321   <<    C31231211113313112133313331311331333133313331333133313331333133313112113113213   >>      C31231211113313112133313331311331333133313331333133313331333133313112113113212   >>