Two identical cubes are used to form a cuboid. The surface area of the cuboid is 10 square centimeters less than the sum of the surface areas of the two cubes. What is the surface area of a cube in square centimeters?
用两个相同的正方体木块拼成一个长方体，长方体的表面积比两个正方体的表面积的和少10平方厘米，一个正方体的表面积是多少平方厘米．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<result>30</result>