A set of mathematics is divided into two volumes, and 2010 numbers are used for page numbering. It is also known that the first volume is 28 pages longer than the second volume, so how many pages are there in the first volume?
一套数学分上下两册，编页码时共用了2010个数码．又知上册比下册多28页，那么上册有多少页．
<gadget id="calculator">90 * 2</gadget>
<output>180</output>

<gadget id="calculator">2_010 - 180 - 9</gadget>
<output>1_821</output>

<gadget id="calculator">1_821 / 3</gadget>
<output>607</output>

<gadget id="calculator">607 + 90 + 9</gadget>
<output>706</output>

<gadget id="calculator">706 + 28</gadget>
<output>734</output>

<gadget id="calculator">734 / 2</gadget>
<output>367</output>

<result>367</result>