A side view of a cuboid is a square with a side length of 8 cm. The ground is also a square. What is the surface area of the cuboid?
一个长方体侧面展开图，是边长8cm的正方形，原来地面也是正方形，长方体的表面积是多少．
<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<gadget id="calculator">2 * 2 * 2</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>