import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        int n=sc.nextInt();
        // int m =sc.nextInt();
        for (int i =0;i<n;i++){
            if(i<=n/2){
                System.out.println(" ".repeat(Math.abs(n/2-i))+"*".repeat(1+2*i));
                // System.out.println();
            }
            else{
                System.out.println(" ".repeat(Math.abs(n/2-i))+"*".repeat(2*n-2*i-1));
            }
        }
    }
}