cuboid glass tank has a bottom area of 200 square centimeters and a height of 8 centimeters, filled with water 4 centimeters deep. A stone is now placed in the water so that the water level rises by 2 cm. What is the volume of this stone in cubic centimeters?
一个长方体玻璃缸，底面积是200平方厘米，高8厘米，里面盛有4厘米深的水．现在将一块石头放入水中，水面升高2厘米．这块石头的体积是多少立方厘米？
<gadget id="calculator">200 * 2</gadget>
<output>400</output>

<result>400</result>