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 Java8 (OpenJDK 1.8.0) (judge verdict: Runtime Error)

import java.util.*;
class Main{
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        int H=sc.nextInt();
        int W=sc.nextInt();
        String a[][]=new String[H+2][W+2];
        String b[][]=new String[H+2][W+2];
        for(int i=1;i<H+1;i++){
            for(int j=1;j<W+1;j++){
                a[i][j]=sc.next();
            }
        }
        int m=0;
        int n=0;
        for(m=0;m<H+2;m++){
            for(n=0;n<W+2;n++){
               if(m==0 || m==H+1 || n==0 || n==W+1){
                   b[m][n]="#";
               }else{
                   b[m][n]=a[m][n];
               }
            }
        }
        int k=0;
        int l=0;
        for(k=0;k<H+2;k++){
            for(l=0;l<W+2;l++){
                System.out.printf("%s",b[k][l]);
            }
            System.out.println();
        }
    }
}