If a piece of cylindrical wood is cut into two cylinders, its surface area increases by 628 square centimeters; if the two cylinders are split along the diameter, its surface area increases by 240 square centimeters. Find the surface area of a cylinder?
一段圆柱体木料，如果截成两个圆柱体，它的表面积就增加628平方厘米；如果沿着直径劈开两个圆柱体，它的表面积就增加240平方厘米．求圆柱表面积？
<gadget id="calculator">240 / 2 / 2</gadget>
<output>60</output>

<gadget id="calculator">6.28 * 60</gadget>
<output>376.8</output>

<gadget id="calculator">628 + 376.8</gadget>
<output>1_004.8</output>

<result>1_004.8</result>