A building is 84 meters high, and a swan flies 225 times the height of the building. How many meters higher does the swan fly than the building?
一座楼房高84米，一只天鹅飞行的高度是楼高的225倍，这只天鹅飞行的高度比这座楼高多少米？
<gadget id="calculator">84 * 225</gadget>
<output>18_900</output>

<gadget id="calculator">18_900 - 84</gadget>
<output>18_816</output>

<result>18_816</result>