young man said: "I will be exactly x years old in x**2 of the 21st century." May I ask what year this young man was born in?
有一位年轻人说："到21世纪的x**2年我恰好x岁"请问这位年轻人出生于哪一年．
<gadget id="calculator">2_021 - 45</gadget>
<output>1_976</output>

<result>1_976</result>