A cuboid container contains some water. If a cylinder with a base radius of 5 cm is completely submerged in water, the water level will rise by 9 cm. If the cylinder is vertically exposed to the water surface by 8 cm, the water level will drop by 4 cm. What is the volume of the cylinder in cubic centimeters?
一个长方体容器里面装有一些水，将一个底面半径是5厘米的圆柱完全放入水中，水面会上升9厘米．如果将这个圆柱垂直露出水面8厘米，水面就会下降4厘米，这个圆柱的体积是多少立方厘米？
<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<gadget id="calculator">2 * 9</gadget>
<output>18</output>

<gadget id="calculator">3.14 * 25 * 18</gadget>
<output>1_413</output>

<result>1_413</result>