Two identical cubes are used to form a cuboid. The surface area of each cube is 54 square centimeters. What is the surface area of the resulting cuboid?
用两个完全一样的正方体拼成一个长方体，已知每个正方体木块的表面积是54平方厘米，所拼成的长方体木块的表面积是多少平方厘米．
<gadget id="calculator">54 * 2</gadget>
<output>108</output>

<gadget id="calculator">54 / 6</gadget>
<output>9</output>

<gadget id="calculator">9 * 2</gadget>
<output>18</output>

<gadget id="calculator">108 - 18</gadget>
<output>90</output>

<result>90</result>