There are 16 rows of seats on the first floor of the station lounge, each row can seat 9 people; there are 12 rows of seats on the second floor, each row can seat 7 people, how many people can rest in this lounge at the same time?
车站休息室一楼有座位16排，每排可以坐9人；二楼有座位12排，每排可以坐7人，这个休息室可同时供多少人休息？
<gadget id="calculator">16 * 9</gadget>
<output>144</output>

<gadget id="calculator">12 * 7</gadget>
<output>84</output>

<gadget id="calculator">144 + 84</gadget>
<output>228</output>

<result>228</result>