If two cubes with side lengths of 2 cm are put together to form a cuboid, what is the surface area in square centimetres?
两个棱长为2厘米的正方体，拼成一个长方体，它的表面积是多少平方厘米．
<gadget id="calculator">2 * 2 * 10</gadget>
<output>40</output>

<result>40</result>