To paste a circle of label paper around a cuboid product box with a length of 5dm, a width of 3dm, and a height of 2dm, how many square decimeters of label paper are needed at least?
要在一个长5dm，宽3dm，高2dm的长方体商品盒的四周贴一圈商标纸，至少需要多少平方分米的商标纸呢？
<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">8 * 2 * 2</gadget>
<output>32</output>

<result>32</result>