36 students line up to play the game. There are two boys between every two girls. The first one is a girl. How many boys are there in this team?
36个同学排队做游戏，每两个女生中间是两个男生，第一个是女生，这个队伍中男生有多少人？
<gadget id="calculator">36 / 3</gadget>
<output>12</output>

<gadget id="calculator">12 * 2</gadget>
<output>24</output>

<result>24</result>