There are 20 piles of stones, and each pile has 2006 stones. It is stipulated that taking one stone from any 19 piles and putting it into another pile is called an operation. After less than 20 such operations, there are 1990 stones in one pile, and 2080 to 2100 stones in the other pile. How many stones are there in this pile?
有20堆石子，每堆都有2006粒，规定：从任意19堆中各取一粒放入另一堆称为一次操作．经过不足20次这种操作后，某一堆有石子1990粒，另一堆的石子数在2080到2100之间，这一堆石子有多少粒？
<gadget id="calculator">19 * 5</gadget>
<output>95</output>

<gadget id="calculator">95 - 11</gadget>
<output>84</output>

<gadget id="calculator">84 + 2_006</gadget>
<output>2_090</output>

<result>2_090</result>