The ratio of the areas of two large and small circles is 9:1, and the difference in circumference is 25.12 cm. What is the sum of the areas of the two large and small circles in square centimeters?
大小两个圆的面积之比是9：1，周长相差25.12厘米，大小两个圆的面积之和是多少平方厘米．
<gadget id="calculator">3 / 1</gadget>
<output>3</output>

<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">25.12 / 2</gadget>
<output>12.56</output>

<gadget id="calculator">12.56 / 3.14 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">3.14 * 36</gadget>
<output>113.04</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>

<gadget id="calculator">113.04 + 12.56</gadget>
<output>125.6</output>

<result>125.6</result>