Put two identical cubes together to form a cuboid. The sum of the lengths of the sides of this cuboid is 40 cm less than the sum of the original sides. What is the volume of the cuboid in cubic centimeters?
把两个完全一样的正方体拼成一个长方体，这个长方体棱长之和比原来棱长之和减少了40厘米，长方体的体积是多少立方厘米．
<gadget id="calculator">40 / 8</gadget>
<output>5</output>

<gadget id="calculator">5 * 5 * 5 * 2</gadget>
<output>250</output>

<result>250</result>