If three cubes with side lengths of 2 cm are put together to form a cuboid, the surface area of the cuboid is reduced by how many square centimeters from the surface area of the original three cubes.
把三个棱长2厘米的正方体拼成一个长方体，这个长方体的表面积比原来三个正方体的表面积减少多少平方厘米．
<gadget id="calculator">2 * 2 * 4</gadget>
<output>16</output>

<result>16</result>