The radius of the bottom surface of a cylindrical fish tank is 1dm. After some fish are put in, the water level rises by 3cm. What is the volume of the fish put in?
一个圆柱形鱼缸的底面半径是1dm，放进去一些鱼后，水面上升了3cm．放进鱼的体积是多少？
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 1 * 100 * 3</gadget>
<output>942</output>

<result>942</result>