Two cuboids with a length of 30 cm, a width of 10 cm, and a height of 8 cm are used to form a large cuboid. What is the largest surface area of the cuboids in square centimeters?
用两个长是30厘米、宽是10厘米，高是8厘米的长方体，拼成一个大的长方体，拼成的长方体中表面积最大的是多少平方厘米．
<gadget id="calculator">30 * 10</gadget>
<output>300</output>

<gadget id="calculator">30 * 8</gadget>
<output>240</output>

<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<gadget id="calculator">300 + 240 + 80</gadget>
<output>620</output>

<gadget id="calculator">620 * 2 * 2</gadget>
<output>2_480</output>

<gadget id="calculator">10 * 8 * 2</gadget>
<output>160</output>

<gadget id="calculator">2_480 - 160</gadget>
<output>2_320</output>

<result>2_320</result>