P10281 [AtCoder] AtCoder Beginner Contest 062 - Picture Frame
入门
题目描述

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.

Examples

Input

2 3
abc
arc

Output

abc

arc

Input

1 1
z

Output

z#

输入格式

见题面

输出格式

见题面

样例输入
2 3 abc arc
样例输出
##### #abc# #arc# #####