If the lateral expansion of a cylinder is a square, if its lateral area is 628 square centimeters, what is the surface area of the cylinder in square centimeters?
一个圆柱侧面展开是一个正方形，如果它的侧面积是628平方厘米，那么圆柱的表面积是多少平方厘米．
<gadget id="calculator">314 / 3.14</gadget>
<output>100</output>

<gadget id="calculator">100 + 628</gadget>
<output>728</output>

<result>728</result>