There are 8 identical columns in the exhibition hall. The height of the columns is 9 meters, and the diameter is 1/9 of the height. If all the 8 columns are painted with paint and 100 grams of paint is used per square meter, how many kilograms of paint will be prepared in total?
展览厅有8根同样的圆柱，柱高9米，直径是高的(1/9)，如果这8根柱子全部刷上油漆，每平方米用油漆100克，一共需要准备多少千克油漆？
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">100 / 1_000</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">3.14 * 9 * (1/9) * 9 * 8 * (1/10)</gadget>
<output>22.608</output>

<result>22.608</result>