After putting together three small cubes with side lengths of 4cm into a cuboid, how much is the surface area reduced in cm**2.
将三个棱长为4cm的小正方体，拼成一个长方体后，其表面积减少了多少cm**2．
<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

<result>64</result>