A cuboid whose height is reduced by 5 cm becomes exactly a cube with a surface area reduced by 120 cm2. What is the volume of the original cuboid?
一个长方体，把它的高减少5厘米正好成为一个正方体，表面积减少120平方厘米．原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>