C312312111133131121333133313113313331333133313331333121111331323133313232231   >>    C31231211113313112133313331311331333133313331333133312111133132313331323223   <<    C312312111133131121333133313113313331333133313331333121111331323133313232233   >>      C312312111133131121333133313113313331333133313331333121111331323133313232232   >>