There are 425 seats in the downstairs of the People's Theater, and 185 seats in the upper floor. How many seats does the People's Theater have?
人民剧场楼下有425个座位，楼上比楼下少185个座位，人民剧场一个有多少个座位？
<gadget id="calculator">425 - 185</gadget>
<output>240</output>

<gadget id="calculator">240 + 425</gadget>
<output>665</output>

<result>665</result>