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

namespace AtCoderTest
{
    public class Program
    {
        public static void Main(string[] args)
        {
            string[] s = Console.ReadLine().Split();
            int h = int.Parse(s[0]);
            int w = int.Parse(s[1]);

            string hf = string.Concat(Enumerable.Repeat("#", w + 2));
            Console.WriteLine(hf);
            for (int i = 0; i < h; i++)
            {
                string p = Console.ReadLine();
                Console.WriteLine("#" + p + "#");
            }
            Console.WriteLine(hf);
        }
    }
}