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 Rust (1.15.1) (judge verdict: Accepted)

fn getline() -> String{
    let mut __ret = String::new();
    std::io::stdin().read_line(&mut __ret).ok();
    return __ret;
}

fn main() {
    let s = getline();
    let a:Vec<_> = s.trim().split(' ').collect();
    let (h,w):(i32,i32) = (a[0].parse().unwrap(), a[1].parse().unwrap());
    for i in 0..w+2 {
        print!("#");
    }
    println!("");
    for i in 0..h {
        let s = getline().to_string();
        // s = s.slice_chars(0,s.count()-1);
        println!("{}{}{}","#",s.trim(),"#");
    }
    for i in 0..w+2 {
        print!("#");
    }
    println!("");
}