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 (GCC 5.4.1) (judge verdict: Accepted)

#include<stdio.h>
#include<string.h>

char a[110][110];
char b[110][110];


int main(void) {

	int i, j;
	int h, w;

	scanf("%d%d", &h, &w);

	//行列aに入力　11からhw成分まで入っている h0成分は改行文字//
	for (i = 1; i <= h ; i++) {
		for (j = 0; j <= w; j++) {
			scanf("%c", &a[i][j]);
		}
	}

	//行列bの成分を全て#にして h(w+2)成分を改行文字にする//
	for (i = 0; i <= h + 1; i++) {
		for (j = 0; j <= w + 2; j++) {
			if (j <= w + 1) {
				b[i][j] = '#';
			}
			else{
				b[i][j] = '\n';
			}
		}
	}

	//行列bの 11成分からhw成分　に行列aを代入する//
	for (i = 1; i <= h; i++) {
		for (j = 1; j <= w; j++) {
			b[i][j] = a[i][j];
		}
	}

	for (i = 0; i <= h + 1; i++) {
		for (j = 0; j <= w + 2; j++) {
			printf("%c", b[i][j]);
		}
	}

	return 0;
}