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<stdlib.h>
#include<string.h>
#include<limits.h>

int main(void){
    int H, W;
    scanf("%d %d", &H, &W);

    char **a = (char**)malloc(H * sizeof(char**));
    int h, w;
    for(h=0; h<H; h++) {
        a[h] = (char*)malloc(W * sizeof(char));
    }
    for(h=0; h<H; h++) {
        scanf("%s", a[h]);
    }
    
    for(w=0; w<W+2; w++) {
        printf("#");
    }
    printf("\n");
    for(h=0; h<H; h++) {
        printf("#");
        printf("%s", a[h]);
        printf("#\n");
    }
    for(w=0; w<W+2; w++) {
        printf("#");
    }
    printf("\n");

    for(h=0; h<H; h++) {
        free(a[h]);
    }
    free(a);
    return 0;
}