The circumference of a circular flower bed is 62.8 meters, and (2/5) of the area is reserved here for cultivating flower seedlings. How much area is left?
一个圆形花坛周长62.8米，在这里留出(2/5)的面积培育花苗，还剩下多少面积？
<gadget id="calculator">62.8 / 3.14 / 2</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100</gadget>
<output>314</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">314 * (3/5)</gadget>
<output>942/5 = around 188.4</output>

<result>942/5 = around 188.4</result>