C3123121111121111131213331333133313331333133313332112323132333133313232233321   >>    C312312111112111113121333133313331333133313331333211232313233313331323223332   <<    C3123121111121111131213331333133313331333133313332112323132333133313232233323   >>      C3123121111121111131213331333133313331333133313332112323132333133313232233322   >>