using System;

public class Program

{

    public static void Main()

    {

        int[] arr = {4, 6};

        createSquares(arr, "*");

    }

    private static void createSquares(int[] arr, string ch)

    {

        if(arr.Length == 1)

        {

            for(int x = 1; x <= arr[0]; x++)

            {

                for(int y = 1; y <= arr[0]; y++)

                {

                    if(x == 1 || x == arr[0])

                    {

                        Console.Write(ch);

                    }

                    else

                    {

                        if(y == 1 || y == arr[0])

                        {

                            Console.Write(ch);

                        }

                        else

                        {

                            Console.Write(" ");

                        }

                    }

                }

                Console.WriteLine("");

            }

        }

        else

        {

            for(int x = 1; x <= arr[1]; x++)

            {

                for(int y = 1; y <= arr[1]; y++)

                {

                    if(x == 1 || x == arr[1])

                    {

                        Console.Write(ch);

                    }

                    else

                    {

                        if(y == 1 || y == arr[1])

                        {

                            Console.Write(ch);

                        }

                        else

                        {

                            if(x < arr[0])

                            {

                                if(y == arr[0])

                                {

                                    Console.Write(ch);

                                }

                                else

                                {

                                    Console.Write(" ");

                                }

                            }

                            else if(x == arr[0])

                            {

                                if(y <= arr[0])

                                {

                                    Console.Write(ch);

                                }

                                else

                                {

                                    Console.Write(" ");

                                }

                            }

                            else

                            {

                                Console.Write(" ");

                            }

                        }

                    }

                }

                Console.WriteLine("");

            }

        }

    }

}