There were 48 people dancing in the square, 9 people left first, and then 15 people left. How many people are still dancing in the square at this time?
广场上原有48人在跳舞，先走了9人，再走了15人，这时广场上还剩下多少人在跳舞？
<gadget id="calculator">48 - 9 - 15</gadget>
<output>24</output>

<result>24</result>