def set_union(A: int, B: int) -> int:
    """

    Args:
        A:
        B:

    Returns:

    Examples:
        >>> bin(set_union(int("0001", 2), int("1110", 2)))
        '0b1111'
        >>> bin(set_union(int("0001", 2), int("0001", 2)))
        '0b1'

    """
    return A | B