Sunshine Primary School held its opening ceremony in the auditorium. The seats in the auditorium are 9 rows, each row has 186 seats. Now there are 12 seats vacant. How many people attended the opening ceremony?
阳光小学在大礼堂举行开学典礼，礼堂座位是9排，每排有186个位置．现在位置空出了12个，一共有多少人参加这个开学典礼？
<gadget id="calculator">186 * 9</gadget>
<output>1_674</output>

<gadget id="calculator">1_674 - 12</gadget>
<output>1_662</output>

<result>1_662</result>