After a 3m-long cylindrical steel is cut into two sections, the surface area increases by 14cm**2. What is the original volume of the steel in cm**3?
将一根长3m的圆柱形钢材横截成2段后，表面积增加14cm**2，原来这根钢材的体积是多少cm**3．
<gadget id="calculator">14 / 2</gadget>
<output>7</output>

<gadget id="calculator">3 * 100</gadget>
<output>300</output>

<gadget id="calculator">7 * 300</gadget>
<output>2_100</output>

<result>2_100</result>