Steel workers want to forge a steel billet with a cross-sectional area of 400 square centimeters and a length of 3 meters into a cube steel block. What is the volume of this cube steel block?
炼钢工人要把一块横截面的面积为400平方厘米、长为3米的钢坯锻造成一块正方体钢块，这块正方体钢块的体积是多少．
<gadget id="calculator">3 * 100</gadget>
<output>300</output>

<gadget id="calculator">400 * 300</gadget>
<output>120_000</output>

<result>120_000</result>