C31231211113313121211113313331323133313331333132213331313232311   >>    C3123121111331312121111331333132313331333133313221333131323231   <<    C31231211113313121211113313331323133313331333132213331313232313   >>      C31231211113313121211113313331323133313331333132213331313232312   >>