A train originally had 827 passengers. After arriving at a certain station, 238 people got off and 195 people boarded. How many passengers are on the train now?
一列火车原有乘客827人，到达某站后有238人下车，195人上车．现在火车上有乘客多少人？
<gadget id="calculator">827 - 238</gadget>
<output>589</output>

<gadget id="calculator">589 + 195</gadget>
<output>784</output>

<result>784</result>