SnowFlake

import java.util.Scanner;

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

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

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

        String middleLines = repeatStr(".", ((2 * n + 3) - 5) / 2)
                + repeatStr("*", 5)
                + repeatStr(".", ((2 * n + 3) - 5) / 2);
        System.out.println(middleLines);
        String staticLine = repeatStr("*", 2 * n + 3);
        System.out.println(staticLine);
        System.out.println(middleLines);

        for (int i = 1; i <= n - 1; i++) {
            String firstAndLastLine2 = repeatStr(".", n - 1 - i)
                    + "*"
                    + repeatStr(".", 1 + i)
                    + "*"
                    + repeatStr(".", 1 + i)
                    + "*"
                    + repeatStr(".", n - 1 - i);
            System.out.println(firstAndLastLine2);
        }
    }

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