A cuboid is 10 decimeters long, 8 decimeters wide, and 5 decimeters high, what is its surface area?
一个长方体长10分米，宽8分米，高5分米，它的表面积是多少平方分米？
<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<gadget id="calculator">10 * 5</gadget>
<output>50</output>

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

<gadget id="calculator">80 + 50 + 40</gadget>
<output>170</output>

<gadget id="calculator">170 * 2</gadget>
<output>340</output>

<result>340</result>