import java.util.Scanner;
import java.math.RoundingMode;
import java.text.DecimalFormat;
public class Misol1001{
public static void main(String[]args){
Scanner i=new Scanner(System.in);
DecimalFormat df = new DecimalFormat("#.####");
        df.setRoundingMode(RoundingMode.CEILING);
int a=i.nextInt();
long[] k=new long[a];
for(int j=0; j<a; j++){
k[j]=i.nextLong();
}

double[] l=new double[a];
for(int c=0;c<a; c++){
l[c]=Math.sqrt(k[c]);
}
for(int j=a-1; j>=0; j--){

System.out.println(df.format(l[j]));
}
}
}