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 vec: Vec<_> = s.trim().split(' ').collect();
    let h: i32 = vec[0].parse().unwrap();
    let w: i32 = vec[1].parse().unwrap();

    let mut lines: Vec<String> = Vec::new();

    for _ in 0..h {
        let s = getline();
        let t: String = String::from(s.trim());
        lines.push(t);
    }

    for _ in 0..(w + 2) {
        print!("#");
    }
    println!("");

    for line in lines.iter() {
        println!("#{}#", line);
    }
    for _ in 0..(w + 2) {
        print!("#");
    }
    println!("");
}