Three cubes of the same size and shape are put together to form a large cuboid. If the sum of the lengths of the sides is reduced by 48 cm, how much is the surface area reduced?
将三个大小形状完全相同的正方体拼成一个大的长方体，如果棱长总和减少48厘米，那么表面积减少多少．
<gadget id="calculator">48 / 16</gadget>
<output>3</output>

<gadget id="calculator">3 * 3 * 4</gadget>
<output>36</output>

<result>36</result>