There is a square flower bed in the park, its circumference is 52 meters, what is the area in square meters?
公园里有一块正方形花坛，它的周长是52米，面积是多少平方米？
<gadget id="calculator">52 / 4</gadget>
<output>13</output>

<gadget id="calculator">13 * 13</gadget>
<output>169</output>

<result>169</result>