
    In a hospital's post-discharge monitoring system, develop a function to calculate the cumulative readmission risk score for patients over their recovery period. Starting from discharge day (n), the risk score decreases by 2 points every other day, continuing until the risk reaches or drops below the baseline of 0. The function should sum these decreasing risk scores (n, n-2, n-4, etc.) to produce a total risk assessment value for the monitoring period. This assessment helps healthcare providers identify high-risk periods and allocate appropriate follow-up resources. The calculation must account for all risk scores from the initial discharge day until the risk level becomes negligible (0 or negative), with the monitoring window automatically adjusting based on the initial risk score (n).
    

    
def sum_series(n):
    """
    In a hospital's post-discharge monitoring system, develop a function to calculate the cumulative readmission risk score for patients over their recovery period. Starting from discharge day (n), the risk score decreases by 2 points every other day, continuing until the risk reaches or drops below the baseline of 0. The function should sum these decreasing risk scores (n, n-2, n-4, etc.) to produce a total risk assessment value for the monitoring period. This assessment helps healthcare providers identify high-risk periods and allocate appropriate follow-up resources. The calculation must account for all risk scores from the initial discharge day until the risk level becomes negligible (0 or negative), with the monitoring window automatically adjusting based on the initial risk score (n).
    

    """
def sum_series(n):
    """
    In a hospital's post-discharge monitoring system, develop a function to calculate the cumulative readmission risk score for patients over their recovery period. Starting from discharge day (n), the risk score decreases by 2 points every other day, continuing until the risk reaches or drops below the baseline of 0. The function should sum these decreasing risk scores (n, n-2, n-4, etc.) to produce a total risk assessment value for the monitoring period. This assessment helps healthcare providers identify high-risk periods and allocate appropriate follow-up resources. The calculation must account for all risk scores from the initial discharge day until the risk level becomes negligible (0 or negative), with the monitoring window automatically adjusting based on the initial risk score (n).
    

    """
    if n < 1:
        return 0
    else:
        return n + sum_series(n - 2)