A cube of stone has a side length of 2 meters, and a cuboid cavity is opened in the center of it. The bottom area of the cavity is 16 square decimeters. What is the volume of the remaining stone?
一块正方体的石料，棱长是2米，在它的中央通一个长方体空洞，空洞的底面积是16平方分米，剩下的石料体积是多少立方分米？
<gadget id="calculator">2 * 10</gadget>
<output>20</output>

<gadget id="calculator">20 * 20</gadget>
<output>400</output>

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

<gadget id="calculator">384 * 20</gadget>
<output>7_680</output>

<result>7_680</result>