What is the result of 2+4+6+8+...+2004+2006+2008?
2+4+6+8+…+2004+2006+2008的结果是多少．
<gadget id="calculator">2 + 2_008</gadget>
<output>2_010</output>

<gadget id="calculator">2_008 - 2</gadget>
<output>2_006</output>

<gadget id="calculator">2_006 / 2</gadget>
<output>1_003</output>

<gadget id="calculator">1_003 + 1</gadget>
<output>1_004</output>

<gadget id="calculator">1_004 / 2</gadget>
<output>502</output>

<gadget id="calculator">2_010 * 502</gadget>
<output>1_009_020</output>

<result>1_009_020</result>