There are 8 chickens and rabbits in a cage, and 26 feet of chickens and rabbits. How many fewer chickens are there than rabbits
笼子里有鸡和兔共8只，鸡的脚和兔的脚共有26条．鸡的只数比兔的只数少多少只
<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<gadget id="calculator">26 - 16</gadget>
<output>10</output>

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

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">8 - 5</gadget>
<output>3</output>

<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<result>2</result>