A cubic wooden box without a cover, the thickness of the board is 2 cm, and the length of the side measured from the outside is 24 cm, what is the volume of the wooden box?
一个无盖的正方体木箱，木板厚度是2厘米，从外面量棱长是24厘米，木箱的容积是多少．
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">24 - 4</gadget>
<output>20</output>

<gadget id="calculator">24 - 2</gadget>
<output>22</output>

<gadget id="calculator">20 * 20 * 22</gadget>
<output>8_800</output>

<result>8_800</result>