Cut a cuboid block of 4 decimeters, width and height of 1 decimeter into several small cubes with edge lengths of 1 decimeter, how many square decimeters is added to the surface area?
把一个4分米，宽和高都是1分米的长方体木块截成几个棱长都是1分米的小正方体，表面积增加了多少平方分米．
<gadget id="calculator">1 * 1 * 6</gadget>
<output>6</output>

<result>6</result>