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 JavaScript (node.js v5.12) (judge verdict: Accepted)

"use strict";

const main = arg => {
    const H = parseInt(arg.split("\n")[0].split(" ")[0]);
    const W = parseInt(arg.split("\n")[0].split(" ")[1]);
    const pixel = arg.split("\n").slice(1, H + 1);
    
    let answer = [];
    
    answer[0] = [];
    answer[0].push("#".repeat(W + 2));
    
    for(let i=1; i<=H; i++) {
        answer[i] = [];
        answer[i].push("#" + pixel[i - 1] + "#");
    }

    answer[H + 1] = [];
    answer[H + 1].push("#".repeat(W + 2));
    
    console.log(answer.join("\n"));
}
main(require('fs').readFileSync('/dev/stdin', 'utf8'));