import java.util.Scanner;
public class Pattern11 {
public static void main(String[] args) {
Scanner scn = new Scanner(System.in);
int n = scn.nextInt();
for (int i = 1; i <= n; i++) {
int k = 0;
for (int j = 1; j <= n * 2 - 1; j++) {
if (j >= n + 1 - i && j <= n - 1 + i && k) {
System.out.print("*");
k = 0;
} else {
System.out.print(" ");
k = 1;
}
}
System.out.println();
}
}
}