Use 90 cm long iron wire to make a square frame with a side length of 14 cm, how many centimeters are left?
用90厘米长的铁丝做一个边长是14厘米的正方形框子，还剩多少厘米？
<gadget id="calculator">14 * 4</gadget>
<output>56</output>

<gadget id="calculator">90 - 56</gadget>
<output>34</output>

<result>34</result>