C312312111133131121333133313113313331333133313331333121111331333133313221121111   >>    C31231211113313112133313331311331333133313331333133312111133133313331322112111   <<    C312312111133131121333133313113313331333133313331333121111331333133313221121113   >>      C312312111133131121333133313113313331333133313331333121111331333133313221121112   >>