import java.util.Scanner;
import java.lang.Math;
//曼哈顿距离,讲过!
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int n = in.nextInt();
int x0 = n / 2, y0 = n / 2;
for (int i = 0; i < n; i ++) {
for (int j = 0; j < n; j ++) {
if ((Math.abs(i - x0) + Math.abs(j - y0)) <= (n / 2)) {
System.out.print('*');
}
else System.out.print(" ");
}
System.out.println();
}
}
}