cuboid, whose surface is all painted red, is divided into several small cubes with a volume equal to 1 cubic centimeter. If among these small cubes, the number of small cubes without red is 8. What is the maximum number of small cubes with red sides.
一个长方体，表面全部涂成红色后，被分割成若干个体积都等于1立方厘米的小正方体，如果在这些小正方体中，不带红色的小正方体的个数是8．两面带红色的小正方体的个数至多为多少．
<gadget id="calculator">1 * 1 * 1 * 2 * 4</gadget>
<output>8</output>

<gadget id="calculator">1 + 1 + 8</gadget>
<output>10</output>

<gadget id="calculator">10 * 4</gadget>
<output>40</output>

<result>40</result>