A sink measures 30 cm in length, 15 cm in width, and 20 cm in height. There is water 10 cm deep in it. After putting a steel block, the water surface rises to 14 cm, and the weight of steel per cubic centimeter is 7.8 Gram, how much does this piece of steel weigh?
一个水槽，量得里面的长为30厘米，宽为15厘米，高为20厘米，里面有深10厘米的水，放进一个钢块后，水面上升到14厘米，每立方厘米的钢重7.8克，这块钢有多重？
<gadget id="calculator">14 - 10</gadget>
<output>4</output>

<gadget id="calculator">30 * 15 * 4</gadget>
<output>1_800</output>

<gadget id="calculator">1_800 * 7.8</gadget>
<output>14_040</output>

<result>14_040</result>