Make a cuboid tin box with a cover, 12 decimeters in length, 8 decimeters in width, and 5 decimeters in height. It is estimated that 80 decimeters of iron will be lost during the production process. How many tin sheets are needed to make this tin box?
制作一个有盖的长方体的铁皮箱，长12分米，宽8分米，高5分米，预计在制作过程中要损耗80平方分米的铁皮．制作这个铁皮箱一共要准备多少铁皮？
<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<gadget id="calculator">12 * 5</gadget>
<output>60</output>

<gadget id="calculator">8 * 5</gadget>
<output>40</output>

<gadget id="calculator">96 + 60 + 40</gadget>
<output>196</output>

<gadget id="calculator">196 * 2</gadget>
<output>392</output>

<gadget id="calculator">392 + 80</gadget>
<output>472</output>

<result>472</result>