The Hope passenger ship originally had 618 passengers. After arriving at a certain port, 157 people disembarked and another 248 boarded. How many passengers are there on the passenger ship now?
希望号客轮原有乘客618人，到达某港后，有157人离船，另有248人上船，现在客轮上有多少乘客？
<gadget id="calculator">618 - 157</gadget>
<output>461</output>

<gadget id="calculator">461 + 248</gadget>
<output>709</output>

<result>709</result>