A piece of cylindrical wood, if cut into two small cylinders. Its surface area increases by 314cm**2; if split into two half cylinders along the diameter, its surface area increases by 160cm**2. Find the surface area of the cylindrical piece of wood.
一段圆柱形木料，如果截成两个小圆柱．它的表面积就增加314cm**2；如果沿直径劈成两个半圆柱，它的表面积就增加160cm**2．求这段圆柱形木料的表面积．
<gadget id="calculator">314 + 251.2</gadget>
<output>565.2</output>

<result>565.2</result>