Alphabet Pyramid

Given an integer N, print a centered palindrome alphabet pyramid where row i contains letters from "A" up to the i-th letter, then back down to "A".

Input Format

A single integer N (1 <= N <= 26).

Output Format

Print N centered rows of alphabetic palindrome sequences.

Constraints:1 <= N <= 26

Concepts Required:

String.fromCharCode / char ASCII offsetAscending then descending character loop

Expected Pattern PreviewASCII Monospace

    A
   ABA
  ABCBA
 ABCDCBA
ABCDEDCBA

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

Example 1

Input:

Output:

    A
   ABA
  ABCBA
 ABCDCBA
ABCDEDCBA

Explanation: Row 1: A. Row 5: ABCDEDCBA.