A cylinder and a cone with the same base and height have a volume difference of 36 cubic meters. What is the volume of the cylinder in cubic meters?
等底等高的圆柱和圆锥，体积相差36立方米，圆柱的体积是多少立方米．
<gadget id="calculator">36 / 2</gadget>
<output>18</output>

<gadget id="calculator">18 * 3</gadget>
<output>54</output>

<result>54</result>