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 (GCC 5.4.1) (judge verdict: Accepted)

#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>

uint8_t buf[100][100];

int32_t main(void)
{
  int32_t H, W;
  scanf("%d %d", &H, &W);
  for (uint8_t i = 0; i < H; i++) {
    scanf("%s", buf[i]);
  }

  for (int32_t i = 0; i < (W + 2); i++) {
    printf("#");
  }
  printf("\n");

  for (int32_t i = 0; i < H; i++) {
    printf("#");
    for (int32_t j = 0; j < W; j++) {
      printf("%c", buf[i][j]);
    }
    printf("#\n");
  }

  for (int32_t i = 0; i < (W + 2); i++) {
    printf("#");
  }
  printf("\n");

  return 0;
}