The length of a cuboid is 15 cm, the width is 12 cm, and the height is 8 cm. What is the surface area of this cuboid?
一个长方体的长是15厘米，宽是12厘米，高是8厘米，这个长方体的表面积是多少平方厘米．
<gadget id="calculator">15 * 12</gadget>
<output>180</output>

<gadget id="calculator">15 * 8</gadget>
<output>120</output>

<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<gadget id="calculator">180 + 120 + 96</gadget>
<output>396</output>

<gadget id="calculator">396 * 2</gadget>
<output>792</output>

<result>792</result>