A cuboid, if its length is shortened by 2 cm, becomes a cube with side lengths of 2 cm. What is the surface area of this cuboid?
一个长方体，如果长缩短2厘米，就变成一个棱长为2厘米的正方体，原来这个长方体的表面积是多少？
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">2 + 2</gadget>
<output>4</output>

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

<gadget id="calculator">4 + 8 + 8</gadget>
<output>20</output>

<gadget id="calculator">20 * 2</gadget>
<output>40</output>

<result>40</result>