A cuboid drawer, if the length, width, and height are 4 decimeters, 3 decimeters, and 2 decimeters, how many square decimeters of wood are needed to make this drawer.
一个长方体的抽屉，如果长，宽，高分别是4分米，3分米，2分米，做这个抽屉需要多少平方分米的木板．
<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<gadget id="calculator">4 * 2 * 2</gadget>
<output>16</output>

<gadget id="calculator">3 * 2 * 2</gadget>
<output>12</output>

<gadget id="calculator">12 + 16 + 12</gadget>
<output>40</output>

<result>40</result>