A cuboid has a length of 8 cm, a width of 5 cm, and a height of 3 cm. What is its surface area?
一个长方体的长8厘米，宽5厘米，高3厘米．它的表面积是多少？
<gadget id="calculator">5 * 3</gadget>
<output>15</output>

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

<gadget id="calculator">3 * 8</gadget>
<output>24</output>

<gadget id="calculator">15 + 40 + 24</gadget>
<output>79</output>

<gadget id="calculator">79 * 2</gadget>
<output>158</output>

<result>158</result>