Parallelepiped

import java.util.Scanner;

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

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

        String firstLine = "+"
                + repeatStr("~", n-2)
                + "+"
                + repeatStr(".", 2*n + 1);
        System.out.println(firstLine);

        for (int i = 0; i <2*n + 1 ; i++) {
            String firstHalf = "|"
                    + repeatStr(".", i)
                    + "\\"
                    + repeatStr("~", n-2)
                    + "\\"
                    + repeatStr(".", 2*n - i);
            System.out.println(firstHalf);
        }

        for (int i = 0; i <2*n + 1 ; i++) {
            String secondHalf = repeatStr(".", i)
                    + "\\"
                    + repeatStr(".", 2*n -i)
                    + "|"
                    + repeatStr("~", n-2)
                    + "|";
            System.out.println(secondHalf);
        }

        String lastLine = repeatStr(".", 2*n + 1)
                + "+"
                + repeatStr("~", n-2)
                + "+";
        System.out.println(lastLine);
    }
    static String repeatStr(String strToRepeat, int count) {
        String text = "";
        for (int i = 0; i < count; i++) {
            text += strToRepeat;
        }
        return text;
    }
}