Mirror Words

import re
some_string = input()
mirror_words = []
pattern = r"(?i)(#|@)([a-z]{3,})\1{2}([a-z]{3,})\1"
matches = re.findall(pattern, some_string)

if len(matches) == 0:
    print("No word pairs found!")
else:
    print(f"{len(matches)} word pairs found!")
    for match in matches:
        first_word = match[1]
        second_word = match[2]
        if first_word == second_word[::-1]:
            mirror_words.append(f"{first_word} <=> {second_word}")
if len(mirror_words) == 0:
    print("No mirror words!")
else:
    print("The mirror words are:")
    print(*mirror_words, sep=", ")