A cylindrical glass container containing water has a base radius of 5 cm. Now put a stone into the container, when the water level rises by 4 cm. What is the volume of the stone in cubic centimeters?
一个盛水的圆柱形玻璃容器，它的底半径是5厘米．现在将一石块放入容器内，这时水面上升了4厘米．石块的体积是多少立方厘米？
<gadget id="calculator">3.14 * 25 * 4</gadget>
<output>314</output>

<result>314</result>