A rectangular iron sheet is 40cm long and 30cm wide. Cut off a square with a side length of 8cm from its four corners to make a cuboid box without a cover. What is its volume in milliliters?
一块长方形铁皮长40cm，宽30cm，在它的四角剪掉边长8cm的正方形，做成一个无盖长方体盒，它的容积是多少毫升．
<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<gadget id="calculator">40 - 16</gadget>
<output>24</output>

<gadget id="calculator">30 - 16</gadget>
<output>14</output>

<gadget id="calculator">24 * 14 * 8</gadget>
<output>2_688</output>

<result>2_688</result>