A cuboid, the base is a square with side length 2 cm, and the sides are also a square. What is the surface area of this cuboid?
一个长方体，底面是边长为2厘米的正方形，侧面展开也是一个正方形．这个长方体的表面积是多少？
<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>

<gadget id="calculator">2 * 4</gadget>
<output>8</output>

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">8 + 64</gadget>
<output>72</output>

<result>72</result>