You cannot submit for this problem because the contest is ended. You can click "Open in Problem Set" to view this problem in normal mode.

Background

Description

打印对称的直角三角形。

根据输入的n（正整数，n<=1<=20），如：输入n=5：

Format

Input

第一行输入n

Output

输出相应的图形

Samples

5

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

10

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

Limitation

1s, 1024KiB for each test case.