The campus has a circular flower bed with a circumference of 125.6 meters. What is the area of the flower bed?
校园有一个周长是125.6米的圆形花坛，这个花坛的占地面积是多少？
<gadget id="calculator">125.6 / 3.14 / 2</gadget>
<output>20</output>

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

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

<result>1_256</result>