Crown

import java.util.Scanner;

public class P05_Crown {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int n = Integer.parseInt(scanner.nextLine());

        int col = (2*n)-1;
        int row = (n/2)+4;

        String firstLine = "@"
                + repeatString(" ", (col-3)/2) + "@"
                + repeatString(" ", (col-3)/2) + "@";
        System.out.println(firstLine);
        String secondLine = "**"
                + repeatString(" ", ((col-3)/2)-1) + "*"
                + repeatString(" ", ((col-3)/2)-1) + "**";
        System.out.println(secondLine);

        for (int i = 0; i < (n / 2) - 2; i++) {
            String line = "*" + repeatString(".", i+1) + "*"
                    + repeatString(" ", (n-5)-(i*2))
                    + "*" + repeatString(".", 1+(i*2)) + "*"
                    + repeatString(" ", (n-5)-(i*2))
                    + "*" + repeatString(".", i+1) + "*";
            System.out.println(line);
        }
        String thirdLine = "*" + repeatString(".", (n/2)-1) + "*"
                + repeatString(".", n-3) + "*"
                + repeatString(".", (n/2)-1) + "*";
        System.out.println(thirdLine);
        String fourthLine = "*" + repeatString(".", n/2)
                + repeatString("*", (n/2)-2) + "."
                + repeatString("*", (n/2)-2)
                + repeatString(".", n/2) + "*";
        System.out.println(fourthLine);
        for (int i = 0; i < 2; i++) {
            System.out.println(repeatString("*", col));
        }

    }
    static String repeatString(String toRepeat, int count) {
        StringBuilder text = new StringBuilder();

        for (int i = 1; i <=count; i++) {
            text.append(toRepeat);
        }
        return text.toString();
    }
}