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 Common Lisp (SBCL 2.0.3) (judge verdict: Accepted)

(let* ((h (read))
       (w (read))
       (center (loop repeat h
                     collect (concatenate 'list "#" (read-line) "#")))
       (edge (loop repeat (+ w 2)
                   collect #\#)))

  (defun f (l)
    (concatenate 'string l))

  (format t "~A~%" (f edge))
  (format t "~{~A~%~}" (mapcar #'f center))
  (format t "~A~%" (f edge)))