// editor5
import java.util.*;
public class Main {
    public static void main (String[] args) {
        Scanner scn = new Scanner (System.in);
        int n = scn.nextInt();
        
        if (n < 0) {
            system.out.print ("Invalid input");
        }
        
        
        int st = 1;
        int sp = n - 1;
        
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < sp; j++) {
                System.out.print(" ");
            }
                for (int k = 0; k < st; k++) {
                    System.out.print("*");
                }
                
                System.out.println();
                sp--;
                st+=2;
        }
    }
}