Two identical cuboid candy boxes are 18cm long, 12cm wide, and 5cm high. How much wrapping paper is needed to wrap these two candy boxes together? (overlapping of wrappers is ignored)
两个相同的长方体糖果盒，长18cm，宽12cm，高5cm，把这两个糖果盒一起包装，至少需要多少包装纸？(包装纸的重叠部分忽略不计)
<gadget id="calculator">18 * 12</gadget>
<output>216</output>

<gadget id="calculator">5 + 5</gadget>
<output>10</output>

<gadget id="calculator">12 * 10</gadget>
<output>120</output>

<gadget id="calculator">10 * 18</gadget>
<output>180</output>

<gadget id="calculator">216 + 120 + 180</gadget>
<output>516</output>

<gadget id="calculator">516 * 2</gadget>
<output>1_032</output>

<result>1_032</result>