A piece of cuboid wood with a length of 4 meters and a base area of 4 square decimeters, if it is sawed into 4 sections of 1 meter long, how many square decimeters will the surface area increase
一块长方体的木料，长4米底面积是4平方分米，如果把它锯成1米长的4段，表面积增加了多少平方分米
<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<result>24</result>