3 cubes with a surface area of 12 square centimeters are used to form a cuboid, what is the surface area of the cuboid in square centimeters?
用3个表面积是12平方厘米的正方体拼成了一个长方体，这个长方体的表面积是多少平方厘米．
<gadget id="calculator">12 * 3</gadget>
<output>36</output>

<gadget id="calculator">12 / 6</gadget>
<output>2</output>

<gadget id="calculator">2 * 4</gadget>
<output>8</output>

<gadget id="calculator">36 - 8</gadget>
<output>28</output>

<result>28</result>