Triforce

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int spaces = 1;
        for (int i = 1; i < n; i++) {
            spaces += 2;
        }
        int currentZvezdo4ki = 1;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < (3 * n) - i; j++) {
                System.out.print(" ");
            }
            for (int j = 0; j < currentZvezdo4ki; j++) {
                System.out.print("*");
            }
            currentZvezdo4ki += 2;
            System.out.println();
        }
        currentZvezdo4ki = 1;
        int currentSpaces = spaces;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j <= spaces; j++) {
                System.out.print(" ");
            }
            for (int j = 0; j < currentZvezdo4ki; j++) {
                System.out.print('*');
            }
            for (int j = 0; j < currentSpaces; j++) {
                System.out.print(" ");
            }
            for (int j = 0; j < currentZvezdo4ki; j++) {
                System.out.print("*");
            }
            currentSpaces -= 2;
            currentZvezdo4ki += 2;
            spaces--;
            System.out.println();
        }
    }
}