It is known that the volume of a cylinder is 12cm**3 more than the volume of its cone with the same base and height. What is the volume of the cylinder in cm**3?
已知一个圆柱的体积比它等底等高的圆锥的体积多12cm**3，则这个圆柱的体积是多少cm**3．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">12 / (2/3)</gadget>
<output>18</output>

<result>18</result>