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;

class Program
{
    static void Main(string[] args)
    {
        var hw = Console.ReadLine().Split(' ');
        var h = int.Parse(hw[0]);
        var w = int.Parse(hw[1]);

        var s = new string[h];
        for (int i = 0; i < h; i++)
        {
            s[i] = Console.ReadLine();
        }

        Console.WriteLine(new string('#', w + 2));
        for (int i = 0; i < h; i++)
        {
            Console.Write("#");
            Console.Write(s[i]);
            Console.WriteLine("#");
        }
        Console.WriteLine(new string('#', w + 2));
    }
}