A 3-meter-long square steel, when it is cut into 3 sections, the surface area increases by 120 square centimeters, what is the volume of the original square steel in cubic centimeters?
一根3米长的方钢，把它横截成3段时，表面积增加120平方厘米，原来方钢的体积是多少立方厘米？
<gadget id="calculator">120 / 4</gadget>
<output>30</output>

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

<gadget id="calculator">30 * 300</gadget>
<output>9_000</output>

<result>9_000</result>