Challenge - #24 - Alphabet Rangoli

import string

def print_rangoli(size):

    # your code goes here

    characters = string.ascii_lowercase

    lst = []

    width  = 4 * size -3

    for i in range(size):

        s = '-'.join(characters[i:size])

        lst.append((s[::-1] + s[1:]).center(width,'-'))

    print('\n'.join(lst[:0:-1] + lst))

if __name__ == '__main__':

    n = int(input())

    print_rangoli(n)