using System;

​

public class Program

{

    public static void Main()

    {

        var n = int.Parse(Console.ReadLine());

        var dashOut =0;

        var mid = n - 2;

        var iter = (n-1)/2;

        var midE = 2;

        var midO = 1;       

        var dashOutUp = (n - 4) / 2;

        var dashOutUpO = (n-3)/2;

        if(n > 2)

        {

            if(n%2!=0)

            {

                Console.WriteLine(new String('-', (n-1)/2)+"*"+new String('-', (n-1)/2));

                for(int i=1; i < iter; i++)

                {

                    Console.WriteLine(new String('-', dashOutUpO)+"*"+new String('-',midO)+"*"+new String('-', dashOutUpO));

                    dashOutUpO--;

                    midO+=2;

                }

                for(int i=0; i < iter; i++)

                {

                    Console.WriteLine(new String('-', dashOut)+"*"+new String('-',mid)+"*"+new String('-', dashOut));

                    dashOut++;

                    mid-=2;

                }

                Console.WriteLine(new String('-', (n-1)/2)+"*"+new String('-', (n-1)/2));

            }       

            if(n%2==0)

            {

                Console.WriteLine(new String('-', (n-1)/2)+"**"+new String('-', (n-1)/2));          

                for(int i=1; i < iter; i++)

                {

                    Console.WriteLine(new String('-', dashOutUp)+"*"+new String('-',midE)+"*"+new String('-', dashOutUp));

                    dashOutUp--;

                    midE+=2;

                }

                for(int i=0; i < iter; i++)

                {

                    Console.WriteLine(new String('-', dashOut)+"*"+new String('-',mid)+"*"+new String('-', dashOut));

                    dashOut++;

                    mid-=2;

                }

                Console.WriteLine(new String('-', (n-1)/2)+"**"+new String('-', (n-1)/2));          

            }

        }

        if(n == 2)

        {

            Console.WriteLine("**");

        }

        if(n == 1)

        {

            Console.WriteLine("*");

        }

    }

}