Palindrome Number Pattern

Given an integer N, print a centered palindrome pyramid where row i has leading spaces (2*(N - i)) followed by numbers decreasing from i down to 1, then increasing from 2 up to i, separated by space.

Input Format

A single integer N.

Output Format

Print N rows forming a palindrome pyramid.

Constraints:1 <= N <= 9

Concepts Required:

Dual sequence (descending + ascending)2*(N - i) leading spacingPalindrome sequence

Expected Pattern PreviewASCII Monospace

        1
      2 1 2
    3 2 1 2 3
  4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5

Notice how character spacing and row counts scale systematically based on the input N.

Concrete Examples

Example 1

Input:

Output:

        1
      2 1 2
    3 2 1 2 3
  4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5

Explanation: Each row reads identical backwards and forwards.

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