If a small cube with a side length of 2 decimeters is placed on a cube with a side length of 8 decimeters, what is the surface area of the three-dimensional figure in square decimeters?
在一个棱长8分米的正方体上放一个棱长2分米的小正方体，这个立体图形的表面积是多少平方分米．
<gadget id="calculator">8 * 8 * 6</gadget>
<output>384</output>

<gadget id="calculator">2 * 2 * 6</gadget>
<output>24</output>

<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>

<gadget id="calculator">24 - 8</gadget>
<output>16</output>

<gadget id="calculator">384 + 16</gadget>
<output>400</output>

<result>400</result>