Chickens and rabbits are in the same cage. There are 100 chickens and rabbits on the top and 26 more chicken feet than rabbits on the bottom. How many rabbits are there in the cage?
鸡兔同笼，上鸡兔共100个头，下鸡脚比兔脚多26只，问笼中有兔子多少只．
<gadget id="calculator">100 * 2</gadget>
<output>200</output>

<gadget id="calculator">200 - 26</gadget>
<output>174</output>

<gadget id="calculator">2 + 4</gadget>
<output>6</output>

<gadget id="calculator">174 / 6</gadget>
<output>29</output>

<result>29</result>