If a cube with a side length of 4 decimeters is cut into 4 cuboids of the same size, the surface area will increase by at least how many square decimeters.
将一棱长是4分米的正方体截成4个同样大小的长方体后，表面积至少增加多少平方分米．
<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

<result>64</result>