C3123121111121111131213331333133313331333133313332112323132333132313232233111   >>    C312312111112111113121333133313331333133313331333211232313233313231323223311   <<    C3123121111121111131213331333133313331333133313332112323132333132313232233113   >>      C3123121111121111131213331333133313331333133313332112323132333132313232233112   >>