There is a cylindrical steel with a length of 2 meters. If it is cut into three identical cylinders, the surface area will be increased by 40 square centimeters compared to the original one. What is the volume of this cylinder in cubic centimeters?
有一根长2米的圆柱形钢材，如果把它截成3段同样的圆柱，表面积比原来增加40平方厘米，这根圆柱的体积是多少立方厘米．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

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

<gadget id="calculator">40 / 4</gadget>
<output>10</output>

<gadget id="calculator">2 * 100</gadget>
<output>200</output>

<gadget id="calculator">10 * 200</gadget>
<output>2_000</output>

<result>2_000</result>