path with a width of 2 meters is built around a circular flower bed with a circumference of 314 meters. What is the area of the path in square meters?
在一个周长是314米的圆形花坛四周修一条宽2米的小路，这条小路的面积是多少平方米？
<gadget id="calculator">314 / 3.14 / 2</gadget>
<output>50</output>

<gadget id="calculator">50 + 2</gadget>
<output>52</output>

<gadget id="calculator">52 ** 2</gadget>
<output>2_704</output>

<gadget id="calculator">50 ** 2</gadget>
<output>2_500</output>

<gadget id="calculator">2_704 - 2_500</gadget>
<output>204</output>

<gadget id="calculator">3.14 * 204</gadget>
<output>640.56</output>

<result>640.56</result>