A cylindrical bucket without a lid has a height of 60 cm and a radius of the bottom of 20 cm. If the outer surface of the bucket is painted, what is the painted area in square centimeters?
一个无盖的圆柱形水桶，高是60厘米，底面半径是20厘米，将水桶的外表面涂漆，涂漆的面积是多少平方厘米？
<gadget id="calculator">3.14 * 20 * 2 * 60</gadget>
<output>7_536</output>

<gadget id="calculator">20 ** 2</gadget>
<output>400</output>

<gadget id="calculator">3.14 * 400</gadget>
<output>1_256</output>

<gadget id="calculator">7_536 + 1_256</gadget>
<output>8_792</output>

<result>8_792</result>