The length of a cuboid is 2dm, the width and height are 8cm, what is its surface area?
一个长方体的长是2dm，宽和高都是8cm，它的表面积是多少．
<gadget id="calculator">2 * 8</gadget>
<output>16</output>

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

<gadget id="calculator">16 + 16 + 64</gadget>
<output>96</output>

<gadget id="calculator">96 * 2</gadget>
<output>192</output>

<result>192</result>