def verify_account_id(account_id):
    """
    Verify Account ID

    :type account_id: str|int
    :param account_id: Account ID

    :return: Fixed account ID
    :rtype: int
    """
    account_id = str(account_id)
    if len(account_id) != 32:
        raise ValueError('The Account ID should be of length 32. Given: {}.'
            .format(account_id))
    return account_id
