C3123121111121111131213331333133313331333133313332112323132333132323211312121   >>    C312312111112111113121333133313331333133313331333211232313233313232321131212   <<    C3123121111121111131213331333133313331333133313332112323132333132323211312123   >>      C3123121111121111131213331333133313331333133313332112323132333132323211312122   >>