[입출력] 백준 2442

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		
		for(int i = 1; i <= n ; i++) {
			for(int j = 1; j <= n - i; j++) {
				System.out.print(" ");				
			}
			for(int k = 1; k <= i ; k++) {
				System.out.print("*");
			}
			for(int l = 1; l < i ; l++) {
				System.out.print("*");
			}
			System.out.println();
		}		
	}
}