If two cubes with side lengths of 4 decimeters are glued together to form a cuboid, the surface area of the cuboid is less than the surface area of the two cubes by how many square decimeters.
用2个棱长4分米的正方体粘合成一个长方体，长方体的表面积比2个正方体的表面积少多少平方分米．
<gadget id="calculator">4 * 4 * 2</gadget>
<output>32</output>

<result>32</result>