How many cubic centimeters of wood should be removed to process a cylindrical wood with a base circumference of 6.28 cm and a height of 6 cm into the largest cone?
把一个底面周长是6.28厘米，高6厘米的圆柱形木加工成一个最大的圆锥，要去掉多少立方厘米的木料？
<gadget id="calculator">6.28 / 3.14 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<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">3.14 * 1 * 6 * (2/3)</gadget>
<output>12.56</output>

<result>12.56</result>