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>
//失敗
int main()
{
    int H,W,i,j=0;
    scanf("%d %d",&H,&W);
    char P[H][W+1];
    for(i=0;i<H;i++) scanf("%s",P[i]);
    for(i=0;i<(H+2)*(W+2);i++){
        if(i<W+2||i%(W+2)==0||i%(W+2)==W+1||i>=(H+1)*(W+2)) printf("#");
        else if(i%(W+2)==1) printf("%s",P[j++]);
        if(i%(W+2)==W+1) puts("");
    }
    return 0;
}