Cut a rectangular wooden pole into 3 sections on average, each section is 1 meter long, and the surface area is increased by 16 square meters, what is the volume of the original cuboid?
将一根长方形木枓平均截成3段，每段长1米，表面积增加16平方米，原长方体的体积是多少．
<gadget id="calculator">16 / 4</gadget>
<output>4</output>

<gadget id="calculator">3 * 1</gadget>
<output>3</output>

<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<result>12</result>