A cubic wooden box without a cover, measured from the outside, has a side length of 6 decimeters and a wall thickness of 2 cm. What is the volume of this wooden box?
一个无盖的正方体木箱，从外面量，棱长为6分米，木箱的壁厚2厘米，这个木箱的容积是多少？
<gadget id="calculator">0.2 * 2</gadget>
<output>0.4</output>

<gadget id="calculator">6 - 0.4</gadget>
<output>5.6</output>

<gadget id="calculator">6 - 0.2</gadget>
<output>5.8</output>

<gadget id="calculator">5.6 * 5.6 * 5.8</gadget>
<output>181.888</output>

<result>181.888</result>