cuboid whose length, width, and height are 8 cm, 7 cm, and 5 cm, find its surface area.
一个长方体长、宽、高是8厘米、7厘米、5厘米，求它的表面积．
<gadget id="calculator">8 * 7</gadget>
<output>56</output>

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

<gadget id="calculator">7 * 5</gadget>
<output>35</output>

<gadget id="calculator">56 + 40 + 35</gadget>
<output>131</output>

<gadget id="calculator">131 * 2</gadget>
<output>262</output>

<result>262</result>