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 Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main{
    public static void main(String[] args)throws Exception {
        BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer tokenizer = new StringTokenizer(input.readLine());
        int x = Integer.parseInt(tokenizer.nextToken());
        int y = Integer.parseInt(tokenizer.nextToken());
        StringBuilder firstAndLast = new StringBuilder();
        for (int i = 0; i < y + 2; i++) {
            firstAndLast.append('#');
        }
        StringBuilder out = new StringBuilder();
        out.append(firstAndLast).append('\n');
        for (int i = 0; i < x; i++) {
            out.append('#').append(input.readLine()).append('#').append('\n');
        }
        out.append(firstAndLast).append('\n');
        System.out.print(out);
    }
}