There are 10 chickens and rabbits in the same cage, and there are 32 chickens. How many chickens are there?
鸡兔同笼共10只，数脚有32只，鸡有多少只只．
<gadget id="calculator">2 * 10</gadget>
<output>20</output>

<gadget id="calculator">32 - 20</gadget>
<output>12</output>

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

<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">10 - 6</gadget>
<output>4</output>

<result>4</result>