There were some passengers on the bus, and after 18 people went down to Wenfeng World, there were 16 people left on the bus. How many passengers were there on the bus?
公交车上有一些乘客，到了文峰大世界下去了18人后车上还剩16人．公交车上原有乘客多少人？
<gadget id="calculator">18 + 16</gadget>
<output>34</output>

<result>34</result>