A cuboid has a length of 4 cm, a width of 2 cm, and a height of 5 cm. What is its surface area in cm**2.
一个长方体，长4厘米，宽2厘米，高5厘米，它的表面积是多少厘米**2．
<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<gadget id="calculator">4 * 5</gadget>
<output>20</output>

<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<gadget id="calculator">8 + 20 + 10</gadget>
<output>38</output>

<gadget id="calculator">38 * 2</gadget>
<output>76</output>

<result>76</result>