A cuboid becomes a cube if its height is reduced by 5 centimeters, and its surface area is reduced by 120 square centimeters. What is the volume of the original cuboid in square centimeters?
一个长方体，如果高减少5厘米，就成了一个正方体，这时表面积少了120平方厘米．原长方体的体积是多少平方厘米？
<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>