There are 18 people in the computer interest group of Baoji Primary School. The number of people in the art group is three times that of the computer group. How many more people are there in the art group than in the computer group?
鲍集小学电脑兴趣小组18人，美术组人数是电脑小组人数的3倍，美术组人数比电脑组人数多多少人？
<gadget id="calculator">18 * 3</gadget>
<output>54</output>

<gadget id="calculator">54 - 18</gadget>
<output>36</output>

<result>36</result>