A cuboid has a length of 12 cm and a width and height of 8 cm. What is the surface area of this cuboid?
一个长方体，长12厘米，宽和高都是8厘米，这个长方体的表面积是多少．
<gadget id="calculator">12 * 8 * 2</gadget>
<output>192</output>

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">192 + 64</gadget>
<output>256</output>

<gadget id="calculator">256 * 2</gadget>
<output>512</output>

<result>512</result>