Print Boxes
-----------
You are asked to print boxes (see sample output below).

Input
-----
The input starts with an integer C, with 1 <= C <= 30, the number 
of test cases.  Each test case consists of a single integer B,
with 1 <= B <= 30, the "size" of the box.

Output
------
For each test case B, print the box of "size" B.  The boxes
should be separated by a single empty line and the last box should
*not* be followed by an empty line.

Sample input
------------
4
1
2
3
8

Sample output
-------------
***
* *
***

*******
*     *
* *** *
* * * *
* *** *
*     *
*******

***********
*         *
* ******* *
* *     * *
* * *** * *
* * * * * *
* * *** * *
* *     * *
* ******* *
*         *
***********

*******************************
*                             *
* *************************** *
* *                         * *
* * *********************** * *
* * *                     * * *
* * * ******************* * * *
* * * *                 * * * *
* * * * *************** * * * *
* * * * *             * * * * *
* * * * * *********** * * * * *
* * * * * *         * * * * * *
* * * * * * ******* * * * * * *
* * * * * * *     * * * * * * *
* * * * * * * *** * * * * * * *
* * * * * * * * * * * * * * * *
* * * * * * * *** * * * * * * *
* * * * * * *     * * * * * * *
* * * * * * ******* * * * * * *
* * * * * *         * * * * * *
* * * * * *********** * * * * *
* * * * *             * * * * *
* * * * *************** * * * *
* * * *                 * * * *
* * * ******************* * * *
* * *                     * * *
* * *********************** * *
* *                         * *
* *************************** *
*                             *
*******************************