05.Fallen In Love

import java.util.Scanner;

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

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

        int counter = 0;
        int counter1 = 0;

        System.out.print("##");
        System.out.print(repeatStr(".", 2 * n));
        System.out.print("##");
        System.out.print(repeatStr(".", 2 * n));
        System.out.println("##");

        for (int i = 1; i <= n - 1; i++) {
            System.out.print("#");
            System.out.print(repeatStr("~", i));
            System.out.print("#");
            System.out.print(repeatStr(".", 2 * n - 2 - counter));
            System.out.print("#");
            System.out.print(repeatStr(".", 2 + counter));
            System.out.print("#");
            System.out.print(repeatStr(".", 2 * n - 2 - counter));
            System.out.print("#");
            System.out.print(repeatStr("~", i));
            System.out.println("#");
            counter += 2;
        }

        System.out.print(".");
        System.out.print("#");
        System.out.print(repeatStr("~", n));
        System.out.print("#");
        System.out.print(repeatStr(".", 2 * n));
        System.out.print("#");
        System.out.print(repeatStr("~", n));
        System.out.print("#");
        System.out.println(".");

        for (int j = 0; j < n - 1; j++) {
            System.out.print(repeatStr(".", 3 + counter1));
            System.out.print("#");
            System.out.print(repeatStr("~", n - 1 - j));
            System.out.print("#");
            System.out.print(repeatStr(".", 2 * n - 2 - counter1));
            System.out.print("#");
            System.out.print(repeatStr("~", n - 1 - j));
            System.out.print("#");
            System.out.println(repeatStr(".", 3 + counter1));
            counter1 += 2;
        }
        System.out.print(repeatStr(".", 2 * n + 1));
        System.out.print(repeatStr("#", 4));
        System.out.println(repeatStr(".", 2 * n + 1));
        for (int m = 0; m < n; m++) {
            System.out.print(repeatStr(".", 2 * n + 2));
            System.out.print("##");
            System.out.println(repeatStr(".", 2 * n + 2));

        }


    }

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