From a cylindrical wood block, dig out a cone. It is known that the height of the cone is cylindrical (5/6), the radius of the bottom of the cylinder is 3 cm, and the height is 12 cm. What is the volume of the portion in cubic centimeters? (π takes 3)
从一个圆柱形木块中，挖去一个圆锥体，已知圆锥的高是圆柱的(5/6)，圆柱的底面半径是3厘米，高12厘米，圆锥的底面半径也是3厘米，剩下部分的体积是多少立方厘米？(π取3)
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3 * 9 * 12</gadget>
<output>324</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">12 * (5/6)</gadget>
<output>10</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 * 9 * 10 * (1/3)</gadget>
<output>90</output>

<gadget id="calculator">324 - 90</gadget>
<output>234</output>

<result>234</result>