Problem:
Score : 200 points

Problem Statement

You are given a image with a height of H pixels and a width of W pixels.
Each pixel is represented by a lowercase English letter.
The pixel at the i-th row from the top and j-th column from the left is a_{ij}.

Put a box around this image and output the result. The box should consist of # and have a thickness of 1.

Constraints

1 ≤ H, W ≤ 100

a_{ij} is a lowercase English letter.

Input

Input is given from Standard Input in the following format:

H W
a_{11} ... a_{1W}
:
a_{H1} ... a_{HW}

Output

Print the image surrounded by a box that consists of # and has a thickness of 1.

Sample Input 1

2 3
abc
arc

Sample Output 1

#####
#abc#
#arc#
#####

Sample Input 2

1 1
z

Sample Output 2

###
#z#
###

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.*;
 
public class Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int H = sc.nextInt();
        int W = sc.nextInt();
        char paste[][] = new char[H+2][W+2];
        String line = "";
        for(int i = 0; i < H + 2; i++){
            for(int j = 0; j < W + 2; j++){
                paste[i][j] = ('#'); 
            }
        }
        for(int i = 1; i < H + 1; i++){
            line = sc.next();
            for(int j = 1; j < W + 1; j++){
                paste[i][j] = line.charAt(j-1); 
            }
        }
        for(int i = 0; i < H + 2; i++){
            for(int j = 0; j < W + 2; j++){
                System.out.print(paste[i][j]);
            }
            System.out.println("");
        }
	}
}