There were originally 305 people on a passenger ship, and then 89 people disembarked and 136 people boarded. How many people were there on the passenger ship at this time?
一艘客轮原有305人，然后又有89人下船，136人上船，这时客轮上有多少人？
<gadget id="calculator">305 - 89</gadget>
<output>216</output>

<gadget id="calculator">216 + 136</gadget>
<output>352</output>

<result>352</result>