Chickens and rabbits have 23 heads and 62 legs in the same cage. How many rabbits are there?
鸡兔同笼有23个头，有62条腿．兔有多少只？
<gadget id="calculator">23 * 4</gadget>
<output>92</output>

<gadget id="calculator">92 - 62</gadget>
<output>30</output>

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

<gadget id="calculator">30 / 2</gadget>
<output>15</output>

<gadget id="calculator">23 - 15</gadget>
<output>8</output>

<result>8</result>