C3123121111121111131213331333133313331333133313332112323132333132332233121   >>    C312312111112111113121333133313331333133313331333211232313233313233223312   <<    C3123121111121111131213331333133313331333133313332112323132333132332233123   >>      C3123121111121111131213331333133313331333133313332112323132333132332233122   >>