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;

char ans[105][105];

int main() {
	int n, m;
	scanf("%d %d", &n, &m);

	for(int i = 0; i <= m + 1; i++) {
		ans[0][i] = '#';
		ans[n + 1][i] = '#';
	}
	for(int i = 1; i <= n; i++) {
		ans[i][0] = '#';
		for(int j = 1; j <= m; j++) {
			scanf(" %c", &ans[i][j]);
		}
		ans[i][m + 1] = '#';
	}

	for(int i = 0; i <= n + 1; i++) {
		for(int j = 0; j <= m + 1; j++) {
			printf("%c", ans[i][j]);
		}
		printf("\n");
	}

	return 0;
}