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 <bits/stdc++.h>
using namespace std;
const long long INF = 1e9;

void func(int W){
    for(int i = 0; i < W; i++)printf("#");
    printf("\n");
    return;
}

void Main(){
    int H, W;
    scanf("%d%d", &H, &W);
    func(W + 2);
    for(int i = 0; i < H; i++){
        string S;
        cin >> S;
        S = "#" + S + "#";
        cout << S << '\n';
    }
    func(W + 2);
    return;
}

int main(){
    cin.tie(0);
//  ios::sync_with_stdio(false);
    std::cout << std::fixed << std::setprecision(15);
    Main();
}