A column in front of Chunlei shopping mall has an outer circumference of 125.6 cm. What is the cross-sectional area of this column in square centimeters?
春雷商场门前的一根圆柱子，外围周长是125.6厘米，这根柱子的横截面积是多少平方厘米？
<gadget id="calculator">125.6 / 2 / 3.14</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>