import java.util.*;
import java.lang.*;
import java.io.*;
class Ideone
{
{
int n;
Scanner in
= new Scanner
(System.
in); n = in.nextInt();
double x, y;
x = in.nextDouble();
System.
out.
println (x
*x
+ " "); for(int i=0; i<(n-1); i++)
{
y = in.nextDouble();
System.
out.
println (x
*y
+ " "); }
}
}
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