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 Go (1.6) (judge verdict: Accepted)

package main

import (
	"fmt"
	"os"
	"bufio"
	"strconv"
	"strings"
)

const MaxBuf = 200100
var buf []byte = make([]byte,MaxBuf)
var sc = bufio.NewScanner(os.Stdin)

func init() {
	sc.Split(bufio.ScanWords)
	sc.Buffer(buf,MaxBuf)
}

func readString() string {
	sc.Scan()
	return sc.Text()
}

func readInt() int {
	sc.Scan()
	r,_ := strconv.Atoi(sc.Text())
	return r
}

func readInt64() int64 {
	sc.Scan()
	r,_ := strconv.ParseInt(sc.Text(),10,64)
	return r
}

func readFloat64() float64 {
	sc.Scan()
	r,_ := strconv.ParseFloat(sc.Text(),64)
	return r
}

func main() {
	h := readInt()
	w := readInt()
	a := make([]string,h)
	for i := 0; i < h ; i++ {
		a[i] = readString()
	}
	s := strings.Repeat("#",w+2)

	fmt.Println(s)
	for i := 0; i < h ; i++ {
		fmt.Printf("#%s#\n",a[i])
	}
	fmt.Println(s)


}