05. Square Frame

import java.util.Scanner;

public class Frame {
    public static void main(String[] agrs) {
        Scanner scanner = new Scanner(System.in);
        int n = Integer.parseInt(scanner.nextLine());

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

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

        System.out.println(firstAndLastRow);

    }

    static String repeatStr(String text, int count) {
        StringBuilder result = new StringBuilder();

        for (int i = 0; i < count; i++) {
            result.append(text);

        }
        return result.toString();
    }
}