C31231211111133131211113313331333133312111133133313232233122311   >>    C3123121111113313121111331333133313331211113313331323223312231   <<    C31231211111133131211113313331333133312111133133313232233122313   >>      C31231211111133131211113313331333133312111133133313232233122312   >>