There were originally 502 people on the train, 205 people got off the first time, and the same number as the first time, how many people are still on the train?
火车上原有502人，第一次下车205人，第二次下车与第一次同样多，这时车上还有多少人？
<gadget id="calculator">205 * 2</gadget>
<output>410</output>

<gadget id="calculator">502 - 410</gadget>
<output>92</output>

<result>92</result>