Crown

import java.util.Scanner;

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

        int n = Integer.parseInt(scanner.nextLine());
        int b = 2* ((2*n - 1)/3 - 2 ) -1;

        String firstLine = "@"
                + repeatStr(" ", n - 2)
                + "@"
                + repeatStr(" ", n - 2)
                + "@";
        System.out.println(firstLine);
        String secondLine = "**"
                + repeatStr(" ", n - 3)
                + "*"
                + repeatStr(" ", n - 3)
                + "**";
        System.out.println(secondLine);

        for (int i = 0; i < n / 2 - 2; i++) {
            String mainBody = "*"
                    + repeatStr(".", 1 + i)
                    + "*"
                    + repeatStr(" ", (n -5) - 2 * i)
                    + "*"
                    + repeatStr(".", 1 + 2 * i)
                    + "*"
                    + repeatStr(" ", (n -5) - 2 * i)
                    + "*"
                    + repeatStr(".", 1 + i)
                    + "*";
            System.out.println(mainBody);
        }

        String line1 = "*"
                + repeatStr(".", (2 * n - 1) / 3 - 2)
                + "*"
                + repeatStr(".", b)
                + "*"
                + repeatStr(".", (2 * n - 1) / 3 - 2)
                + "*";
        System.out.println(line1);

        String line2 = "*"
                + repeatStr(".", n / 2)
                + "*"
                + repeatStr("*", (n - 6) / 2)
                + "."
                + repeatStr("*", (n - 6) / 2)
                + "*"
                + repeatStr(".", n / 2)
                + "*";
        System.out.println(line2);


        String lastLines = repeatStr("*", 2 * n - 1);
        System.out.println(lastLines);
        System.out.println(lastLines);
    }

    static String repeatStr(String strToRepeat, int count) {
        String text = "";
        for (int i = 0; i < count; i++) {
            text += strToRepeat;
        }
        return text;
    }
}