A 48cm long iron wire can be welded into a cuboid with a length of 3cm, a width of 4cm and a height of cm.
用一根48cm长的铁丝能焊接成一个长3cm，宽4cm，高多少cm的长方体．
<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<gadget id="calculator">12 - 3 - 4</gadget>
<output>5</output>

<result>5</result>