If 27 small cubes with a volume of 1 cubic centimeter are glued together to form a large cube, what is the surface area of the big cube after bonding?
用27个体积是1立方厘米的小正方体粘合成一个大正方体，粘合后的大正方体的表面积是多少．
<gadget id="calculator">3 * 3 * 6</gadget>
<output>54</output>

<result>54</result>