When two cubes with side lengths of 4 cm are put together to form a cuboid, what is the reduction in surface area from the sum of the original two surface areas?
两个棱长为4厘米的正方体拼成一个长方体后，表面积比原来两个表面积之和减少多少．
<gadget id="calculator">4 * 4 * 2</gadget>
<output>32</output>

<result>32</result>