Use a length of iron wire to make a rectangular parallelepiped frame with a length of 6 cm, a width of 5 cm, and a height of 3 cm.
用一根长多少铁丝正好做一个长6厘米、宽5厘米、高3厘米的长方体框架．
<gadget id="calculator">6 + 5 + 3</gadget>
<output>14</output>

<gadget id="calculator">14 * 4</gadget>
<output>56</output>

<result>56</result>