Students in a certain class make flowers for a cultural performance. It is known that there are 38 people who make red flowers, 39 people who make yellow flowers, and 3 people who don’t make flowers. If there are 55 people in the class, how many people make both kinds of flowers? ．
某班同学为了文艺汇演做花，已知做红花的有38人，做黄花的有39人，没有做花的有3人，如果全班有55人，那么两种花都做的有多少人．
<gadget id="calculator">55 - 3</gadget>
<output>52</output>

<gadget id="calculator">39 - 52</gadget>
<output>-13</output>

<gadget id="calculator">38 + (-13)</gadget>
<output>25</output>

<result>25</result>