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: Wrong Answer)

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ABC_062
{
    class B
    {
        static void Main()
        {
            string[] WH = Console.ReadLine().Split(' ');
            int w = int.Parse(WH[0]);
            int h = int.Parse(WH[1]);

            ArrayList contentArray = new ArrayList();
            for(int i = 0; i  < h; i++)
            {
                string content = Console.ReadLine();
                contentArray.Add("#" + content + "#");
            }

            for(int i = 0; i <= h + 1; i++)
            {
                if(i == 0)
                {
                    for (int j = 0; j <= w + 1; j++)
                    {
                        Console.Write("#");

                    }
                }
                else if(i == h + 1)
                {
                    Console.Write("\n");
                    for (int j = 0; j <= w + 1; j++)
                    {
                        Console.Write("#");

                    }
                }
                else
                {
                    Console.Write("\n" + contentArray[i - 1]);
                }
            }

        }


    }
}