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#
#####