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: WA: Presentation Error)

import java.util.Scanner;

public class Main{
    public static void main(String[] args){
        Scanner s = new Scanner(System.in);
        int h,w,i,j;
        while(true){
        h = s.nextInt();
        w = s.nextInt();
        if(h==0&&w==0)break;
        for(i=1;i<=h;i++){
            for(j=1;j<=w;j++){
                if(i==1||i==h||j==1||j==w)System.out.print("#");
                else System.out.print(".");
            }
            System.out.println();
        }
    }
    }
}