def make_HASC(cc, adm1, adm2=None):
    """
    Create a simplie hiearchical path for a boundary
    :param cc:
    :param adm1:
    :param adm2:
    :return:
    """
    if not adm1:
        adm1 = '0'
    if adm2:
        return '{}.{}.{}'.format(cc, adm1, adm2)
    else:
        return '{}.{}'.format(cc, adm1)