How much is the surface area of this cuboid to be reduced from the sum of the surface areas of the three cubes by putting together three wooden cubes with a side length of 2 cm to form a cuboid?
把三个棱长为2厘米的正方体木块拼成一个长方体，这个长方体的表面积比3个正方体的表面积之和减少多少
<gadget id="calculator">2 * 2 * 4</gadget>
<output>16</output>

<result>16</result>