A cylindrical water cup, the inner diameter of the bottom surface is 10 cm, the height is 16 cm, the poured drink accounts for 80% of the volume, how many milliliters of the drink is poured into it?
一个圆柱形水杯，底面内直径是10厘米，高是16厘米，倒入的饮料占容积80%，倒入饮料多少毫升？
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">3.14 * 25 * 16</gadget>
<output>1_256</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1_256 * (4/5)</gadget>
<output>5_024/5 = around 1_004.8</output>

<result>5_024/5 = around 1_004.8</result>