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 C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Linq;

class prog{
  static void Main(){
    
    int[] input = Console.ReadLine().Split().Select(int.Parse).ToArray();
    string[] pic = new string[input[0] + 2];
    for(int i = 1; i <= input[0]; i++){
      pic[i] = "#" + Console.ReadLine() + "#";
    }
    
    for(int i = 0; i < input[1] + 2; i++){
      pic[0] += "#";
      pic[input[0] + 1] += "#";
    }
    
    for(int i = 0; i < input[0] + 2; i++){
      Console.WriteLine(pic[i]);
    }
  }
}