If a cylinder with a length of 2 meters is cut into two sections, the surface area increases by 16 decimeters, what is the volume of the cylinder in cubic decimeters?
把一根长2米的圆柱，截成2段，表面积增加了16平方分米，这根圆柱的体积是多少立方分米．
<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">2 * 10</gadget>
<output>20</output>

<gadget id="calculator">8 * 20</gadget>
<output>160</output>

<result>160</result>