A cylinder of wood is 3 meters long. If it is sawn into 3 equal sections, the surface area will increase by 16 square decimeters. What is the volume of this wood in cubic decimeters?
一根圆柱体木料长3米，如果把它锯成相等的3段，表面积增加16平方分米，原来这根木料的体积是多少立方分米？
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">16 / 4</gadget>
<output>4</output>

<gadget id="calculator">4 * 3 * 10</gadget>
<output>120</output>

<result>120</result>