There are 35 students in a certain class who participated in this year's Chern Mathematics Week. There are 23 boys in this class. So how many more girls in this class participated in this year's activities than boys who did not participate in this year's activities.
某班有35人参加了今年的陈省身数学周活动，这个班有男生23人．那么该班参加今年活动的女生比没有参加今年活动的男生多多少人．
<gadget id="calculator">35 - 23</gadget>
<output>12</output>

<result>12</result>