There is a cylindrical glass with an inner diameter of 8 cm, filled with 16 cm deep water, which just accounts for (4/5) of the capacity of this glass, and how many cubic centimeters of water can be put in to fill this glass Cup full?
有一只内直径是8厘米的圆柱形玻璃杯，内装16厘米深的水，这些水恰好占这只玻璃杯容量的(4/5)，再放入多少立方厘米的水，才能把这只玻璃杯装满？
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">16 / (4/5)</gadget>
<output>20</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">3.14 * 16 * 20 * (1/5)</gadget>
<output>200.96</output>

<result>200.96</result>