import java.util.*;

public class P2969 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        for (int i = 0; i < n; i++) {
            int stars = i <= n / 2 ? (2 * i + 1) : (2 * (n - i - 1) + 1);
            int spaces = (n - stars) / 2;
            StringBuilder row = new StringBuilder();
            for (int s = 0; s < spaces; s++) row.append(' ');
            for (int k = 0; k < stars; k++) row.append('*');
            System.out.println(row.toString());
        }
        in.close();
    }
}