Identify the types of strings the regular expression in the below code block represents?

All you need to do is run this code block, analyze the output and answer the associated question. re_pattern = r'(\([0-9][0-9][0-9]\)\s)?[0-9][0-9][0-9]-[0-9][0-9][0-9][0-9]' test_strings = ["00", "999-999-9999", "(111) 111-1111", "(111)111-1111", "989-1830", "241/131/103", "(182).1903.1021", "(101).101.1001","+1 398-344-4342", "+44 447-342-4232","+1(234) 2323-2323","+1(234) 232-2323","+1(123)231-1222","+9(195)2323-2323","+44 (447)-342-4232","+44 (447).342.4232","+16 (324)/342.4232"] apply_regex(test_strings, re_pattern)