A cuboid becomes a cube after its height is reduced by 2 centimeters, and its surface area is reduced by 56 square centimeters. What is the volume of the original cuboid in cubic centimeters?
一个长方体高减少2厘米之后变成正方体，表面积减少56平方厘米，原来长方体的体积是多少立方厘米？
<gadget id="calculator">56 / 4 / 2</gadget>
<output>7</output>

<gadget id="calculator">7 + 2</gadget>
<output>9</output>

<gadget id="calculator">7 * 7 * 9</gadget>
<output>441</output>

<result>441</result>