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;
using System.IO;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using System.Text.RegularExpressions;
 
class Program
{
    static void Main()
    {
        string[] inputs = Console.ReadLine().Split(' ');
        int H = int.Parse(inputs[0]);
        int W = int.Parse(inputs[1]);
        string[] a = new string[H];
        for (int i = 0; i < H; i++)
        {
            a[i] = Console.ReadLine();
        }
        for (int i = -1; i < H + 1; i++)
        {
            Console.Write('#');
            if (i == -1 || i == H)
            {
                for (int j = 0; j < W; j++)
                {
                    Console.Write('#');
                }
            }
            else Console.Write(a[i]);
            Console.WriteLine('#');
        }
    }
}