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>
int main(void){
    int h,w,i,j;
    char s[102][102];
    scanf("%d%d",&h,&w);
    for(i=0;i<=h+1;i++){
        for(j=0;j<=w+1;j++){
            s[i][j]='#';
        }
    }
    for(i=1;i<=h;i++){
        scanf("%s",s[i]);
        for(j=w;j>0;j--){
            s[i][j]=s[i][j-1];
        }
        s[i][0]='#';
    }
    for(i=0;i<=h+1;i++){
        for(j=0;j<=w+1;j++){
            printf("%c",s[i][j]);
        }
        putchar('\n');
    }
    return 0;
}