/***************************************************************************
* Name:
* Login:
* Precept:
*
* Description: It's a secret.
*
* Dependencies: None.
***************************************************************************/
public class SecretMessage {
public static void main(String[] args) {
int N = Integer.parseInt(args[0]);
for (int i = -3*N/2; i <= N; i++) {
for (int j = -3*N/2; j <= 3*N/2; j++) {
// inside either diamond or two circles
if ( (Math.abs(i) + Math.abs(j) < N)
|| ((-N/2-i) * (-N/2-i) + ( N/2-j) * ( N/2-j) <= N*N/2)
|| ((-N/2-i) * (-N/2-i) + (-N/2-j) * (-N/2-j) <= N*N/2)
)
System.out.print("* ");
else System.out.print(". ");
}
System.out.println();
}
}
}