Cut a cube into a cylinder with the largest volume. If the lateral area of the cylinder is 12.56 square centimeters, what is the surface area of the cube in square centimeters?
把一个正方体削成一个体积最大的圆柱体．如果圆柱的侧面积是12.56平方厘米，正方体的表面积多少平方厘米．
<gadget id="calculator">12.56 / 3.14</gadget>
<output>4</output>

<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<result>24</result>