C31231211113313121211113313331333133313331213331333133312111113223313133311   >>    C3123121111331312121111331333133313331333121333133313331211111322331313331   <<    C31231211113313121211113313331333133313331213331333133312111113223313133313   >>      C31231211113313121211113313331333133313331213331333133312111113223313133312   >>