There are 2012 numbers, the first number is 4, and each subsequent number is 2 greater than the previous number, what is the average of these 2012 numbers?
有2012个数，第一个是4，以后每一个数都比前一个数大2，这2012个数的平均数是多少．
<gadget id="calculator">2_012 - 1</gadget>
<output>2_011</output>

<gadget id="calculator">2_011 * 2</gadget>
<output>4_022</output>

<gadget id="calculator">4 + 4_022</gadget>
<output>4_026</output>

<gadget id="calculator">4 + 4_026</gadget>
<output>4_030</output>

<gadget id="calculator">2_012 / 2 / 2_012</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">4_030 * (1/2)</gadget>
<output>2_015</output>

<result>2_015</result>