If 27 small cubes with a side length of 1 cm are piled up to form a large cube, how many square centimeters will the surface area of this large cube be less than the sum of the areas of all the original small cubes?
把27块棱长是1厘米的小正方体堆成一个大正方体，这个大正方体的表面积比原来所有的小正方体的面积之和少多少平方厘米？
<gadget id="calculator">3 ** 3</gadget>
<output>27</output>

<gadget id="calculator">1 * 1 * 6 * 27</gadget>
<output>162</output>

<gadget id="calculator">3 * 3 * 6</gadget>
<output>54</output>

<gadget id="calculator">162 - 54</gadget>
<output>108</output>

<result>108</result>