cylindrical piece of wood with a length of 2 meters is sawed into two small cylinders, and the surface area increases by 2512 square centimeters compared with the original one. What is the original volume of this piece of wood in centimeters**3.
一根长2米的圆柱形木料，把它锯成两个小圆柱后，表面积比原增加2512平方厘米，这根木料原的体积是多少厘米**3．
<gadget id="calculator">2_512 / 2</gadget>
<output>1_256</output>

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

<gadget id="calculator">1_256 * 200</gadget>
<output>251_200</output>

<result>251_200</result>