If the length, width and height of a cuboid are enlarged to 4 times of the original, its surface area will be enlarged to how many times of the original.
一个长方体的长、宽、高都扩大到原来的4倍，它的表面积就扩大到原来的多少倍．
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<result>16</result>