How many five-digit numbers are there? After adding 2003, it becomes a perfect square number.
有多少个五位数，加上2003后为完全平方数．
<gadget id="calculator">319 - 110</gadget>
<output>209</output>

<gadget id="calculator">209 + 1</gadget>
<output>210</output>

<result>210</result>