There are 23 tricycles and cars in a parking lot, and there are 78 wheels, how many fewer cars than tricycles.
某停车场有三轮车和小轿车共23辆，数一数车轮有78个，小轿车比三轮车少多少辆．
<gadget id="calculator">23 * 3</gadget>
<output>69</output>

<gadget id="calculator">78 - 69</gadget>
<output>9</output>

<gadget id="calculator">4 - 3</gadget>
<output>1</output>

<gadget id="calculator">9 / 1</gadget>
<output>9</output>

<gadget id="calculator">23 - 9</gadget>
<output>14</output>

<gadget id="calculator">14 - 9</gadget>
<output>5</output>

<result>5</result>