After combining three small cylinders with a height of 10cm and the same thickness to form a large cylinder, the surface area is reduced by 12.56 square centimeters. What is the surface area of this small cylinder?
将3个高10cm，粗细一样的小圆柱拼成一个大圆柱后，表面积减少了12.56平方厘米，这个小圆柱的表面积是多少？
<gadget id="calculator">12.56 / 4</gadget>
<output>3.14</output>

<gadget id="calculator">3.14 * 2</gadget>
<output>6.28</output>

<gadget id="calculator">2 * 3.14 * 1 * 10</gadget>
<output>62.8</output>

<gadget id="calculator">6.28 + 62.8</gadget>
<output>69.08</output>

<result>69.08</result>