Problem:
Print a Frame

Draw a frame which has a height of H cm and a width of W cm. For example, the following figure shows a frame which has a height of 6 cm and a width of 10 cm.

##########
#........#
#........#
#........#
#........#
##########

Input

The input consists of multiple datasets. Each dataset consists of two integers H and W separated by a single space.

The input ends with two 0 (when both H and W are zero).

Output

For each dataset, print the frame made of '#' and '.'.

Print a blank line after each dataset.

Constraints

3 ≤ H ≤ 300

3 ≤ W ≤ 300

Sample Input

3 4
5 6
3 3
0 0

Sample Output

####
#..#
####

######
#....#
#....#
#....#
######

###
#.#
###

Solution in JAVA (judge verdict: Wrong Answer)

import java.util.*;

public class Main{

	public static void main(String[] args) {
		scan();
	}
	public static void scan() {
		Scanner scanner = new Scanner(System.in);
		while(true){
			int H = scanner.nextInt();
			int W = scanner.nextInt();
			if(H == 0 && W == 0){break;}
			Print(H , W);
			System.out.println("");
			
		}
		scanner.close();
		return ;
	}
	public static void Print(int H, int W){
		for(int y = 0 ; y < H ; y++){
			for(int x = 0; x < W ; x++){
				if(y==0 || x == 0 || y == H-1 || x == W-1){
					System.out.print("#");
				}
				else {
					System.out.print("-");
				}
			}
			System.out.println("");
		}
		return;
	}	
	
	
}