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++14 (GCC 5.4.1) (judge verdict: Accepted)


#include <iostream>
#include <cmath>
#include <vector>
#include <string>
using namespace std;
using ll = long long;
#define out(S) cout<<(S)<<endl;

int getGroup(int x) {
	if (x == 1 || x == 3 || x == 5 || x == 7 || x == 8 || x == 10 || x == 12) return 1;
	if (x == 2) return 3;
	return 2;
}

int main()
{
	int H, W;
	vector<string> o;
	cin >> H >> W;
	for (size_t i = 0; i < H; i++)
	{
		string a,push;
		cin >>a;
		push = "#" + a + "#";
		o.push_back(push);
	}
	string head = "";
	for (size_t i = 0; i < W+2; i++)
	{
		head += "#";
	}
	out(head);
	for (auto s : o) {
		out(s);
	}
	out(head);

    return 0;
}