There are 8 rows downstairs with 428 seats in the cinema. There are 9 rows upstairs with 28 seats in each row. How many fewer seats are there upstairs than downstairs?
电影院楼下有8排，共有428个座位，楼上有9排，每排28个座位，楼上比楼下少多少个座位？
<gadget id="calculator">9 * 28</gadget>
<output>252</output>

<gadget id="calculator">428 - 252</gadget>
<output>176</output>

<result>176</result>