If a 14-meter-long log is cut into three small pieces, and the surface area is increased by 0.8 square decimeters, what is the original volume of the log in cubic decimeters?
把一根14米长的圆木截成三小段，表面积增加0.8平方分米，这根圆木的体积原来是多少立方分米．
<gadget id="calculator">0.8 / 4</gadget>
<output>0.2</output>

<gadget id="calculator">0.2 * 14 * 10</gadget>
<output>28</output>

<result>28</result>