A theater can seat 1000 people. There are 9 rows of seats upstairs, and each row has 23 seats. How many seats are there downstairs in this theater?
一家剧院能坐1000人．楼上有9排座位，每排23个座位，这家剧院楼下有多少个座位？
<gadget id="calculator">9 * 23</gadget>
<output>207</output>

<gadget id="calculator">1_000 - 207</gadget>
<output>793</output>

<result>793</result>