diff --git a/arrays_and_strings/check_permutation_strings_is_palindrome.py b/arrays_and_strings/check_permutation_strings_is_palindrome.py
index 4f6291c..b213d73 100644
--- a/arrays_and_strings/check_permutation_strings_is_palindrome.py
+++ b/arrays_and_strings/check_permutation_strings_is_palindrome.py
@@ -1,3 +1,7 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# author: bt3gl
+
 # given a string, write a function to check if it's a permutation of palindromes