C3123121111331312121111331333133313331333121333132233131133131331123121   >>    C312312111133131212111133133313331333133312133313223313113313133112312   <<    C3123121111331312121111331333133313331333121333132233131133131331123123   >>      C3123121111331312121111331333133313331333121333132233131133131331123122   >>