import java.util.Scanner;

/*
 * Lab 6 Tutorial 1
 *
 * Description: Draws a box of stars.
 */

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: ");
		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();
		}
    }
} // end of Tutorial1