Put an irregular copper block in a cylindrical container with a bottom radius of 10 cm. The copper block is completely submerged in water. At this time, the water level rises by 4 cm. What is the volume of this block of copper in cubic centimeters?
在底面半径是10厘米的圆柱形容器中放入一块不规则的铜块，铜块完全浸没在水中，这时水面上升了4厘米．这块铜块的体积是多少立方厘米？
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100 * 4</gadget>
<output>1_256</output>

<result>1_256</result>