A cuboid has a length of 5 cm, a width of 4 cm, and a height of 8 cm. What is the surface area of this cuboid?
一个长方体，长5厘米，宽4厘米，高8厘米，这个长方体的表面积是多少？
<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">5 * 8</gadget>
<output>40</output>

<gadget id="calculator">4 * 8</gadget>
<output>32</output>

<gadget id="calculator">20 + 40 + 32</gadget>
<output>92</output>

<gadget id="calculator">92 * 2</gadget>
<output>184</output>

<result>184</result>