It is known that there is a set of numbers in sequence: (1/1), (1/2), (2/2), (1/3), (2/3), (3/3), (1/4 ), (2/4), (3/4), (4/4), (1/5), ..., how many numbers from left to right in this set of numbers is (2012/2013).
已知有一组数依次排例为：(1/1)，(1/2)，(2/2)，(1/3)，(2/3)，(3/3)，(1/4)，(2/4)，(3/4)，(4/4)，(1/5)，…，在这一组数列中从左往右第多少个数字是(2012/2013)．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2_013 + 1</gadget>
<output>2_014</output>

<gadget id="calculator">(1/2) * 2_013 * 2_014</gadget>
<output>2_027_091</output>

<gadget id="calculator">2_027_091 - 1</gadget>
<output>2_027_090</output>

<result>2_027_090</result>