
    Given a binary risk profile indicator for an investor where each bit represents different investment criteria, write a function that identifies and activates the leftmost inactive investment criterion by setting its corresponding bit. The function should maintain the status of all currently active investment criteria while enabling one additional criterion that has the highest precedence (leftmost position) among the inactive options.
    

    
def set_left_most_unset_bit(n):
    """
    Given a binary risk profile indicator for an investor where each bit represents different investment criteria, write a function that identifies and activates the leftmost inactive investment criterion by setting its corresponding bit. The function should maintain the status of all currently active investment criteria while enabling one additional criterion that has the highest precedence (leftmost position) among the inactive options.
    

    """
def set_left_most_unset_bit(n):
    """
    Given a binary risk profile indicator for an investor where each bit represents different investment criteria, write a function that identifies and activates the leftmost inactive investment criterion by setting its corresponding bit. The function should maintain the status of all currently active investment criteria while enabling one additional criterion that has the highest precedence (leftmost position) among the inactive options.
    

    """
    if not n & n + 1:
        return n
    (pos, temp, count) = (0, n, 0)
    while temp:
        if not temp & 1:
            pos = count
        count += 1
        temp >>= 1
    return n | 1 << pos