Use a 100 cm long iron wire to make a cuboid frame model. It is known that the length is 12 cm, the width is 2 cm, and the height is in cm.
用一根长100厘米的铁丝做一个长方体框架模型，已知长是12厘米，宽是2厘米，高是多少厘米．
<gadget id="calculator">100 / 4</gadget>
<output>25</output>

<gadget id="calculator">25 - 12 - 2</gadget>
<output>11</output>

<result>11</result>