def is_valid_password(password: str) -> bool:
    caracteres = False
    mayuscula = False
    digito = False
    simbolo = False
    simbolos = "!@#%$^&*"
    if len(password)>=8: caracteres = True
    for i in password:
        if i.isupper(): mayuscula = True
        if i.isdigit(): digito = True
        if i in simbolos: simbolo = True
    return caracteres and mayuscula and digito and simbolo