If the volume difference between a cone and its cylinder of equal base and height is 12 cubic centimeters, what is the volume of the cone?
一个圆锥体和它的等底等高的圆柱体的体积相差12立方厘米，圆锥体的体积是多少．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<result>6</result>