If a cylindrical wood with a volume of 63 cubic centimeters is cut into the largest cone, what is the volume of this cone in cubic centimeters?
把一个体积为63立方厘米的圆柱形木材，削成一个最大的圆锥，这个圆锥的体积是多少立方厘米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">63 * (1/3)</gadget>
<output>21</output>

<result>21</result>