Rectangle Outline

Source: Phước Hưng OJ

Version: Phuoc Hung OJ Extended

Problem Statement

Given a rectangle of $m$ rows and $n$ columns, each at least 2, print * at any cell in its first/last row or column, and . at other cells. Do not separate characters with spaces.

Input

One line contains the integers $m$ (rows) and $n$ (columns).

Output

Print $m$ rows of exactly $n$ characters.

Subtasks

• Subtask 1 (20%): $2\le m,n\le 3$.

• Subtask 2 (30%): $2\le m,n\le 9$.

• Subtask 3 (50%): $2\le m,n\le 30$.

Examples

Example 1

Input:

3 5

Output:

*****
*...*
*****

Explanation:

A cell is a star if it lies on any of the four border sides. For this sample, the input is 3 5; the displayed rows follow these rules exactly.

Example 2

Input:

2 3

Output:

***
***

Explanation:

A cell is a star if it lies on any of the four border sides. For this sample, the input is 2 3; the displayed rows follow these rules exactly.