A cuboid, the sum of its front and top areas is 90, if its length, width and height are three consecutive natural numbers, then what is the volume of this cuboid.
一个长方体，它的正面和上面的面积之和是90，如果它的长、宽、高是三个连续的自然数，那么这个长方体的体积是多少．
<gadget id="calculator">6 * 7 * 8</gadget>
<output>336</output>

<result>336</result>