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 Scala (2.11.7) (judge verdict: Accepted)

object Main extends App {
  val Array(h, w) = io.StdIn.readLine.split(" ").map(_.toInt)
  val ans = Array.fill(h+2)(Array.empty[Char].toBuffer)
  val line = Array.fill(w+2)('#')
  ans.head ++= line
  ans.tail.init.foreach(e => {
    e += '#'
    e ++= io.StdIn.readLine
    e += '#'
  })
  ans.last ++= line
  ans.foreach(a => println(a.mkString))
}