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 p
{
  static void Main()
  {
    string[] input = Console.ReadLine().Split(' ');
    int H = int.Parse(input[0]);
    int W = int.Parse(input[1]);
    
    char[] header = Enumerable.Repeat('#', W + 2).ToArray();
    Console.WriteLine(header);
    for (int i = 0; i < H; i++) {
      Console.WriteLine("#" + Console.ReadLine() + "#");
    }
    Console.WriteLine(header);
  }
}