What is the sum of all numbers among the 2010 natural numbers from 1 to 2010?
从1～2010这2010个自然数中，所有数字和是多少．
<gadget id="calculator">1 + 2_010</gadget>
<output>2_011</output>

<gadget id="calculator">2_010 / 2</gadget>
<output>1_005</output>

<gadget id="calculator">2_011 * 1_005</gadget>
<output>2_021_055</output>

<result>2_021_055</result>