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*2) sb.append("* "); while(n-- > 0){ System.out.println(sb); int len = sb.length(); sb.delete(len - 2, len); sb.insert(0, " "); } } } }