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 static System.Math;

class Program{
  public static void Main(){

    var input = Console.ReadLine().Split();
    int h = int.Parse(input[0]);
    int w = int.Parse(input[1]);
    

    for(int i=0;i<h+2;i++){
      if(i==0 || i==h+1){
        for(int j=0; j<w+2; j++){
          Console.Write("#");
        }
        Console.WriteLine("");
      }
      else{
        Console.Write("#");
        string s = Console.ReadLine().Replace(" ","");
        Console.Write(s);
        Console.WriteLine("#");
      }
    }
  }
}