import java.util.Scanner;
public class GeorgeHany {
    public static void main (String [] args){
        Scanner sc = new Scanner (System.in);
        System.out.print("Enter a positive odd number: ");
        int n = sc.nextInt();
        if (n == 1){
            System.out.println("*");
        }
        else {
            int c = n/2 + 1;
            for (int i=1; i<c; i++)
                System.out.print(" ");
            System.out.println("*");
            int spaces1 = c - 2;
            int spaces2 = 0;
            for (int i=2; i<c; i++){
                for (int j=1; j<=spaces1; j++)
                    System.out.print(" ");
                System.out.print("*");
                for (int j=1; j<=spaces2; j++)
                    System.out.print(" ");
                System.out.print("*");
                for (int j=1; j<=spaces2; j++)
                    System.out.print(" ");
                System.out.println("*");
                spaces1--;
                spaces2++;
            }
            for (int i=1; i<=n; i++)
                System.out.print("*");
            System.out.println("");
            spaces1 = 1;
            spaces2 = c - 3;
            for (int i=2; i<c; i++){
                for (int j=1; j<=spaces1; j++)
                    System.out.print(" ");
                System.out.print("*");
                for (int j=1; j<=spaces2; j++)
                    System.out.print(" ");
                System.out.print("*");
                for (int j=1; j<=spaces2; j++)
                    System.out.print(" ");
                System.out.println("*");
                spaces1++;
                spaces2--;
            }
            for (int i=1; i<c; i++)
                System.out.print(" ");
            System.out.print("*");
        }
    }

}