有上边空下边打一字谜

Where else could it be? I could have stolen it from the old man! Ji Shaolei chuckled and said: "The old man's health has become worse and worse in recent years, so the special nurse asked him to quit smoking, but the cigarettes allocated every month remain the same. No one smokes anyway, so I took advantage of the old man and the guards Without even paying attention, two lines came out....