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 <cstdlib>
#include <cstring>
#include <algorithm>
#include <string>
#include <sstream>
#include <complex>
#include <vector>
#include <list>
#include <queue>
#include <deque>
#include <stack>
#include <map>
#include <set>
#include <iomanip>
using namespace std;
typedef long long unsigned int ll;

#define EPS (1e-7)
#define INF (1e9)
#define PI (acos(-1))

#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)   FOR(i,0,n)

#define DEBUG

#ifdef DEBUG
#define var_dump(...) fprintf(stdout, __VA_ARGS__)
#define dump(a) cout << a << "\n";
#else
#define var_dump(...) 42
#define dump(a) 42
#endif

// https://beta.atcoder.jp/contests/abc062/tasks/abc062_b

int main() {
    int H, W;
    cin >> H >> W;

    REP(i, W+2) cout << "#";
    cout << "\n";

    string s;
    REP(i, H) {
        cin >> s;
        cout << "#" + s  + "#" << "\n";
    }

    REP(i, W+2) cout << "#";
    cout << "\n";

    return 0;
}