金字塔

import java.util.*;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()){
            int n = sc.nextInt();
            StringBuilder sb = new StringBuilder("");
            while(sb.length() < n - 1) sb.append(" ");
            sb.append("* ");
            while(n-- > 0){
                System.out.println(sb);
                sb.deleteCharAt(0);
                sb.append("* ");
            }
        }
    }
}