p05_SquareFrame

import java.util.Scanner;

public class p05_SquareFrame {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

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

        String firstAndLastLine = "+"
                + repeatStr(" -", n - 2)
                + " +";
        System.out.println(firstAndLastLine);

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

        System.out.println(firstAndLastLine);
    }



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