There were 32 people on the No. 101 bus, 4 people got off at the back door of Xiaonanmen Station, and 18 people got on the front door. How many people are in the car now?
101路公交车上有32人，到了小南门车站后门有4人下车，前门上了18人．现在车上有多少人？
<gadget id="calculator">32 - 4</gadget>
<output>28</output>

<gadget id="calculator">28 + 18</gadget>
<output>46</output>

<result>46</result>