C31231211113313121211113313331333133313331213331323133313332211211   >>    C3123121111331312121111331333133313331333121333132313331333221121   <<    C31231211113313121211113313331333133313331213331323133313332211213   >>      C31231211113313121211113313331333133313331213331323133313332211212   >>