Print Triangles
---------------
You are asked to print triangles (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 triangle.

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

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

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

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

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

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