C31231211111133131211113313331333133313331323133313232213331323321   >>    C3123121111113313121111331333133313331333132313331323221333132332   <<    C31231211111133131211113313331333133313331323133313232213331323323   >>      C31231211111133131211113313331333133313331323133313232213331323322   >>