On a cuboid with a length of 8 decimeters, a width and a height of 2 decimeters, and two cubes whose sides are both 2 decimeters in length, how many cubic decimeters will be reduced in volume?
在一个长8分米，宽和高都是2分米的长方体上，截下两个棱长都是2分米的正方体，体积减少了多少立方分米？
<gadget id="calculator">2 ** 3</gadget>
<output>8</output>

<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<result>16</result>