def generateParenthesis(n: int) -> List[str]:
    """
    :type n: int
    :rtype: List[str]
    """
    stack = []
    pairs = ""
    opening_brackets = {'('}
    closing_brackets = {')'}
    bracket_pairs = {')': '('}

    # Create n pairs
    for i in range(n):
        pairs += "()"
    # print(pairs)
    
    # Create and filter permutations
    for pair in permutations(pairs):
        parenthesis = "".join(pair)
        # print(pair)
        # print(parenthesis)
        if parenthesis in bracket_pairs.keys():
            if not stack or stack[-1] != bracket_pairs[parenthesis]:
                print('bad')    
generateParenthesis(3)