If 3 small cubes with side lengths of 2 cm are put together to form a cuboid, the surface area is reduced by how many square centimeters compared to the original.
把3个棱长是2厘米的小正方体拼成一个长方体，表面积比原来减少了多少平方厘米．
<gadget id="calculator">2 * 2 * 4</gadget>
<output>16</output>

<result>16</result>