C3123121111331312121111331333133313331333121333133313331211111223132212121   >>    C312312111133131212111133133313331333133312133313331333121111122313221212   <<    C3123121111331312121111331333133313331333121333133313331211111223132212123   >>      C3123121111331312121111331333133313331333121333133313331211111223132212122   >>