cylindrical tin bucket without a lid, with a bottom radius of 2 decimeters and a height of 8 decimeters. The inside and outside of the bucket are painted with anti-rust paint, and the paint is 2 grams per square decimeter. How many grams will be used in total?
一个无盖圆柱形铁皮水桶，底面半径2分米，高8分米，在桶的里外两面都漆上防锈漆，每平方分米用油漆2克，一共要用多少克？
<gadget id="calculator">2 * 3.14 * 2 * 8 * 2</gadget>
<output>200.96</output>

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

<gadget id="calculator">2 * 3.14 * 4</gadget>
<output>25.12</output>

<gadget id="calculator">200.96 + 25.12</gadget>
<output>226.08</output>

<gadget id="calculator">226.08 * 2</gadget>
<output>452.16</output>

<result>452.16</result>