There were originally 582 people in the conference room, but 128 people left and 235 people came in at the same time. How many people are there in the conference room now?
会议室原有582人在开会，后有128人离开了，同时又来了235人，现在会议室里有多少人？
<gadget id="calculator">582 - 128</gadget>
<output>454</output>

<gadget id="calculator">454 + 325</gadget>
<output>779</output>

<result>779</result>