C3123121111331312121111331333133313331333121333133313332233132213232311   >>    C312312111133131212111133133313331333133312133313331333223313221323231   <<    C3123121111331312121111331333133313331333121333133313332233132213232313   >>      C3123121111331312121111331333133313331333121333133313332233132213232312   >>