C31231211113313112133313331311331333133313311211113313331322132211211   >>    C3123121111331311213331333131133133313331331121111331333132213221121   <<    C31231211113313112133313331311331333133313311211113313331322132211213   >>      C31231211113313112133313331311331333133313311211113313331322132211212   >>