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++14 (GCC 5.4.1) (judge verdict: Runtime Error)

//B - Picture Frame
//https://atcoder.jp/contests/abc062/tasks/abc062_b

#include <cstdio>

int main()
{
  int H, W;
  char c[101][101];

  scanf("%d%d", &H, &W);

  for (int i = 0; i < H; i++)
  {
    for (int j = 0; j < W; j++)
    {
      scanf("%c", &c[i][j]);
    }
  }

  for (int i = 0; i < W + 2; i++)
  {
    printf("#");
  }
  printf("\n");

  for (int i = 0; i < H; i++)
  {
    printf("#");
    for (int j = 0; j < W; i++)
    {
      printf("%c", c[i][j]);
    }
    printf("#\n");
  }

  for (int i = 0; i < W + 2; i++)
  {
    printf("#");
  }
  printf("\n");
}