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 <cstdio>
#include <algorithm>
#include <cmath>
#include <cstring>
#include <string>
#include <vector>
#include <map>
#include <set>
using namespace std;

#define _ sync_with_stdio(false)
typedef long long ll;
const int MAXN=100000+10;
const int INF=0x7fffffff;

int n,m;
string s[110];

int main(){
	cin>>n>>m;
	for(int i=0;i<n;i++)
		cin>>s[i];
	for(int i=0;i<m+2;i++)
		cout<<"#";
	cout<<endl;
	for(int i=0;i<n;i++){
		cout<<"#"<<s[i]<<"#"<<endl;
	}
	for(int i=0;i<m+2;i++)
			cout<<"#";
		cout<<endl;
}