C31231211111133131211113313331333133312111133133313331333133313221121111   >>    C3123121111113313121111331333133313331211113313331333133313331322112111   <<    C31231211111133131211113313331333133312111133133313331333133313221121113   >>      C31231211111133131211113313331333133312111133133313331333133313221121112   >>