A cylindrical cup with a base radius of 4 cm and a height of 10 cm contains water with a surface height of 8 cm. A small ball is immersed in the cup, and 12.56 grams will overflow after the water is full. Find the volume of the ball. (1 cubic centimeter of water weighs 1 gram)
在一个底面半径为4厘米、高为10厘米的圆柱形的杯子内装有水，水面高为8厘米．把一个小球浸没在杯内，水满后还溢出12.56克．求小球的体积．(1立方厘米水重1克)
<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<gadget id="calculator">3.14 * 16 * 2</gadget>
<output>100.48</output>

<gadget id="calculator">100.48 + 12.56</gadget>
<output>113.04</output>

<result>113.04</result>