A piece of round steel is 2 meters long and the diameter of the bottom is 6 cm. If this piece of round steel is cut off by 40%, what is the volume of the remaining round steel in cubic centimeters?
一段圆钢长2米，底面直径是6厘米，把这段圆钢截下40%，剩下的圆钢体积是多少立方厘米？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">3.14 * 9 * 2 * 100 * (3/5)</gadget>
<output>3_391.2</output>

<result>3_391.2</result>