There were 736 people on the train from Linyi to Beijing, 254 people got off at Jinan Station, and 489 people got on. How many people were there on the train?
从临沂开往北京的火车上原有736人，到济南站下去254人，又上来489人，这时火车上共有多少人？
<gadget id="calculator">736 - 254</gadget>
<output>482</output>

<gadget id="calculator">482 + 489</gadget>
<output>971</output>

<result>971</result>