If the height of a cuboid is reduced by 5 cm, it becomes a cube. At this time, the surface area will be 120 cm2 less than the original one. What is the volume of the original cuboid?
一个长方体，如果高减少5厘米，就成了一个正方体，这时表面积会比原来少120平方厘米，原来长方体的体积是多少？
<gadget id="calculator">120 / 4 / 5</gadget>
<output>6</output>

<gadget id="calculator">6 + 5</gadget>
<output>11</output>

<gadget id="calculator">6 * 6 * 11</gadget>
<output>396</output>

<result>396</result>