The school organizes interest groups. There are 9 people participating in the calligraphy group, 24 people participating in the painting group, and 3 times as many people participating in the singing group as the painting group. How many more people are in the singing group than in the calligraphy group?
学校组织兴趣小组，参加书法组的有9人，参加绘画组的有24人，参加唱歌组的人数是绘画组的3倍．唱歌组的人数比书法组的人数多多少人？
<gadget id="calculator">24 * 3</gadget>
<output>72</output>

<gadget id="calculator">72 - 9</gadget>
<output>63</output>

<result>63</result>