def __patronymics(name, ltr):
    """ Auxiliary function for generating suffixes for name

    1. name - part of name
    2. ltr  - 'е' for 'евич' / 'евна' or 'о' for 'ович' / 'овна' suffixes
    3. return list of generated patronymics
    """
    return [name + ltr + 'вич', name + ltr + 'вна']