Use three cuboid wooden blocks with a length of 25 cm, a width of 20 cm, and a height of 10 cm to form a cuboid with the smallest surface area. What is the surface area of the cuboid after it is assembled?
用三块长25厘米，宽20厘米，高10厘米的长方体木块，拼成一个表面积最小的长方体，拼成后长方体表面积是多少平方厘米？
<gadget id="calculator">25 * 20 * 2</gadget>
<output>1_000</output>

<gadget id="calculator">25 * 10 * 2</gadget>
<output>500</output>

<gadget id="calculator">20 * 10 * 2</gadget>
<output>400</output>

<gadget id="calculator">1_000 + 500 + 400</gadget>
<output>1_900</output>

<gadget id="calculator">1_900 * 3</gadget>
<output>5_700</output>

<gadget id="calculator">25 * 20 * 4</gadget>
<output>2_000</output>

<gadget id="calculator">5_700 - 2_000</gadget>
<output>3_700</output>

<result>3_700</result>