Find the surface area of a cuboid whose length is 10 cm and whose width and height are both 8 cm.
求长为10厘米，宽和高都是8厘米的长方体的表面积．
<gadget id="calculator">80 + 80 + 64</gadget>
<output>224</output>

<gadget id="calculator">224 * 2</gadget>
<output>448</output>

<result>448</result>