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.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner scan = new Scanner(System.in);
		int h = scan.nextInt();
		int w = scan.nextInt();
		String[] s = new String[h];//sはw文字
		StringBuilder soto = new StringBuilder();
		soto.append("##");
		for(int i=0;i<h;i++) {
			s[i]=scan.next();
		}
		for(int i=0;i<w;i++) {
			soto.append("#");
		}
		System.out.println(soto);

		for (int i=0;i<h;i++) {
			System.out.print("#");
			System.out.print(s[i]);
			System.out.println("#");
		}
		System.out.println(soto);
	}

}