A cylindrical pencil with a length of 18 cm and a diameter of the base is 0.6 cm. When the tip of the pencil is cut into a cone shape with a height of 2 cm, how many cubic centimeters will the volume of the pencil be reduced?
一枝长18厘米的圆柱形铅笔，底面直径是0.6厘米，把铅笔的笔头削成高是2厘米的圆锥形后，铅笔的体积减少了多少立方厘米？
<gadget id="calculator">0.6 / 2</gadget>
<output>0.3</output>

<gadget id="calculator">0.3 ** 2</gadget>
<output>0.09</output>

<gadget id="calculator">3.14 * 0.09 * 2</gadget>
<output>0.5652</output>

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

<gadget id="calculator">3.14 * 0.09 * 2 * (1/3)</gadget>
<output>0.1884</output>

<gadget id="calculator">0.5652 - 0.1884</gadget>
<output>0.3768</output>

<result>0.3768</result>