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 Java (OpenJDK 11.0.6) (judge verdict: Accepted)

import java.util.*;

class Main{
  static public void main(String[] args){
    Scanner sc=new Scanner(System.in);
    int a=sc.nextInt(),b=sc.nextInt();
    List<String>list=new ArrayList<>();
    for(int i=0;i<a;i++)
    list.add("#"+sc.next()+"#");
  
    for(int i=0;i<b+2;i++)System.out.print("#");
    System.out.println();
    for(int i=0;i<a;i++)System.out.println(list.get(i));
    for(int i=0;i<b+2;i++)System.out.print("#");
    
    sc.close();
  }
}