If a log with a length of 2 meters is cut into three sections, the surface area is increased by 12 square decimeters, what is the volume of this log in cubic decimeters?
把一根长2米的圆木横截成三段，表面积比原来增加了12平方分米，这根木料的体积是多少立方分米．
<gadget id="calculator">12 / 4</gadget>
<output>3</output>

<gadget id="calculator">3 * 2 * 10</gadget>
<output>60</output>

<result>60</result>