Diamond Pattern Printer

You are given a single integer n (with 1 ≤ n ≤ 20) from standard input. Your task is to print a diamond pattern using asterisks ('*'). The diamond consists of 2n - 1 lines. For a given line index i (ranging from -n+1 to n-1), the number of spaces to print is |i|, and the number of asterisks is given by the formula: $$2(n - |i|) - 1$$. Each line should be printed on a new line, and the diamond must be centered based on the widest part of the pattern.

Example:

Input: 3
Output:
*

If the input is not within the valid range, the program should output an error message: "Input should be between 1 and 20 inclusive."

inputFormat

The input consists of a single integer n provided via standard input.

Constraints: 1 ≤ n ≤ 20

outputFormat

Output the diamond pattern to standard output. If the input is invalid, output the error message: "Input should be between 1 and 20 inclusive."

## sample

3

  *

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