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 scanner = new Scanner(System.in);
    
    int H = scanner.nextInt();
    int W = scanner.nextInt();
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < W + 2; i++) sb.append('#');
    sb.append('\n');
    for (int i = 0; i < H; i++) {
      sb.append('#').append(scanner.next().toCharArray()).append('#').append('\n');
    }
    for (int i = 0; i < W + 2; i++) sb.append('#');
    sb.append('\n');
    System.out.print(sb.toString());
	}
}