
    Given a patient's vital sign monitoring status represented as a binary number, where 1 indicates a monitored vital sign and 0 indicates an unmonitored one, develop a function that identifies and activates monitoring for the highest-priority unmonitored vital sign (leftmost unset bit). This automated triage optimization ensures systematic coverage of all critical health parameters in emergency care, following a left-to-right priority sequence.
    

    
def set_left_most_unset_bit(n):
    """
    Given a patient's vital sign monitoring status represented as a binary number, where 1 indicates a monitored vital sign and 0 indicates an unmonitored one, develop a function that identifies and activates monitoring for the highest-priority unmonitored vital sign (leftmost unset bit). This automated triage optimization ensures systematic coverage of all critical health parameters in emergency care, following a left-to-right priority sequence.
    

    """
def set_left_most_unset_bit(n):
    """
    Given a patient's vital sign monitoring status represented as a binary number, where 1 indicates a monitored vital sign and 0 indicates an unmonitored one, develop a function that identifies and activates monitoring for the highest-priority unmonitored vital sign (leftmost unset bit). This automated triage optimization ensures systematic coverage of all critical health parameters in emergency care, following a left-to-right priority sequence.
    

    """
    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