백준 #26772번 Poziome serca

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 = 0; i < n; i++) {
			System.out.print(" @@@   @@@  ");
		}
		System.out.println();
		
		for(int i = 0; i < n; i++) {
			System.out.print("@   @ @   @ ");
		}
		System.out.println();
		
		for(int i = 0; i < n; i++) {
			System.out.print("@    @    @ ");
		}
		System.out.println();
		
		for(int i = 0; i < n; i++) {
			System.out.print("@         @ ");
		}
		System.out.println();
		
		for(int i = 0; i < n; i++) {
			System.out.print(" @       @  ");
		}
		System.out.println();
		
		for(int i = 0; i < n; i++) {
			System.out.print("  @     @   ");
		}
		System.out.println();
		
		for(int i = 0; i < n; i++) {
			System.out.print("   @   @    ");
		}
		System.out.println();
		
		for(int i = 0; i < n; i++) {
			System.out.print("    @ @     ");
		}
		System.out.println();
		
		for(int i = 0; i < n; i++) {
			System.out.print("     @      ");
		}
		System.out.println();
		sc.close();
	}
}