To make a cuboid lantern without a top cover, the length, width, and height of the lantern are 30cm, 20cm, and 5cm respectively. How many centimeters of iron wire do you need at least? What is the minimum size of paper needed?
制作一个没有上盖的长方体灯笼，灯笼的长、宽、高分别是30cm、20cm、5cm，至少需要多少厘米长的铁丝？至少需要多大面积的纸？
<gadget id="calculator">30 * 20</gadget>
<output>600</output>

<gadget id="calculator">30 * 5 * 2</gadget>
<output>300</output>

<gadget id="calculator">20 * 5 * 2</gadget>
<output>200</output>

<gadget id="calculator">600 + 300 + 200</gadget>
<output>1_100</output>

<result>1_100</result>