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