The Shanghai Radio and TV Tower is 468 meters high, and the Central Radio and Television Tower is 405 meters high. How many meters is the Shanghai Radio and Television Tower higher than the Central Radio and Television Tower?
上海广播电视塔高468米，中央广播电视塔高405米，上海广播电视塔比中央广播电视塔高多少米？
<gadget id="calculator">468 - 405</gadget>
<output>63</output>

<result>63</result>