import java.util.Scanner;

/*
*
*
* Description: Draws a X.
*/

public class Tutorial1
{ public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
int i,j;
System.out.print("Enter size of box: 4 ");
int size = sc.nextInt();

for (i=0; i < size; i++)
{
for (j=0; j < size; j++)
{
if ( (i == 0) // First row
|| (i == size-1) // Last row
|| (j == 0) // First column
|| (j == size-1) ) // Last column
System.out.print("*"); // Draw star
else
System.out.print(" "); // Draw space
}
System.out.println();
}
}
} //