/*

using System;

public class Program

{

public static void Main()

{

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

​

var euro = leva / 1.95583;

Console.WriteLine(euro);

}

}

*/

/*

using System;

public class Program

{

public static void Main()

{

var a = decimal.Parse(Console.ReadLine());

var b = decimal.Parse(Console.ReadLine());

​

Console.WriteLine(a*b);

}

}

*/

using System;

​

public class Program

{

public static void Main()

{

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

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

{

​

Console.Write("*");

​

}

Console.WriteLine();

for(int j=1; j <=n-2; j++)

{

Console.Write("*");

for(int k=1; k<=n-2; k++)

Console.Write("");

Console.WriteLine("");

}

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

{

​

Console.Write("*");

​

}

}

}