There are 12 chickens and rabbits, and there are 32 legs. How many rabbits are there?
鸡和兔共有12只，数一数腿有32条，其中兔有多少只．
<gadget id="calculator">2 * 12</gadget>
<output>24</output>

<gadget id="calculator">32 - 24</gadget>
<output>8</output>

<gadget id="calculator">4 - 2</gadget>
<output>2</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<result>4</result>