C31231211113313121211113313331333133313331213331333131311331323133313211213221   >>    C3123121111331312121111331333133313331333121333133313131133132313331321121322   <<    C31231211113313121211113313331333133313331213331333131311331323133313211213223   >>      C31231211113313121211113313331333133313331213331333131311331323133313211213222   >>