C3123121111121111131213331333133313331333133313332112323132333132233211111   >>    C312312111112111113121333133313331333133313331333211232313233313223321111   <<    C3123121111121111131213331333133313331333133313332112323132333132233211113   >>      C3123121111121111131213331333133313331333133313332112323132333132233211112   >>