cuboid becomes a cube when its length is reduced by 3 centimeters, and its surface area is reduced by 60 square centimeters. What is the volume of this cube.
一个长方体的长减少3厘米后就变成了一个正方体，这时它的表面积减少了60平方厘米．这个正方体的体积是多少．
<gadget id="calculator">60 / 4 / 3</gadget>
<output>5</output>

<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">5 * 5 * 8</gadget>
<output>200</output>

<result>200</result>