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#5934

Star triangle 2 1s 64MB

Problems

Given the height 𝑛 of a triangle, write a program that prints a triangle in the format shown in the sample output.


Input

A positive odd integer 𝑛 not exceeding 100 is given.


Output

If the input value is outside the specified range, output INPUT ERROR!.

There should be no spaces between * characters.


Example #1

0
INPUT ERROR!

Example #2

3
**
 *
 **

Example #3

7
****
 ***
  **
   *
   **
   ***
   ****


Source

JUNGOL

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