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.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int H = 3;//scan.nextInt();
        int W = 3;//scan.nextInt();
        int w = 0;
        int h = 0;
        while(H != 0 && W != 0){
            while(h < H){
                while(w < W){
                    if(w == (W -1)){
                        System.out.println("#");
                    }
                    else if(h ==0 || h == (H -1)){
                        System.out.print("#");
                    }
                    else{
                        if(w == 0){
                            System.out.print("#");
                        }
                        else{
                            System.out.print(".");
                        }
                    }
                    w++;
                }
                h++;
                w = 0;
            }
            w = 0;
            h = 0;
            H = scan.nextInt();
            W = scan.nextInt();
            System.out.println("");
        }
    }
}