When two cubes with a side length of 1 decimeter are put together to form a cuboid, how many square decimeters will the surface area be reduced?
棱长1分米的两个正方体，拼成一个长方体后，表面积减少多少平方分米
<gadget id="calculator">1 * 1 * 2</gadget>
<output>2</output>

<result>2</result>