p06_Rectangle*

import java.util.Scanner;
import java.lang.String;

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

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

        System.out.printf("%s\n", repeatStr("*", n));
        for (int i = 0; i < n ; i++) {

            for (int row = 0; row < i - 2; row++) {
                System.out.printf("%s%s%s", repeatStr("*", 1),
                                            repeatStr(" ", n-2),
                                            repeatStr("*", 1));
                System.out.println();

            }
        }
        System.out.printf("%s\n", repeatStr("*", n));



    }
    static String repeatStr(String strToRepeat, int count) {
      String text = "";

        for (int i = 0; i < count; i++) {
            text = text + strToRepeat;
        }

        return text;
    }

}