
    Given a patient's daily health record represented as a sequence where '0' indicates a normal health day and '1' indicates a day with medical complications, find the time period that shows the largest difference between the number of stable days and days with complications. This analysis helps identify patterns in the patient's health stability to assess readmission risk.
    

    
def find_length(string):
    """
    Given a patient's daily health record represented as a sequence where '0' indicates a normal health day and '1' indicates a day with medical complications, find the time period that shows the largest difference between the number of stable days and days with complications. This analysis helps identify patterns in the patient's health stability to assess readmission risk.
    

    """
def find_length(string):
    """
    Given a patient's daily health record represented as a sequence where '0' indicates a normal health day and '1' indicates a day with medical complications, find the time period that shows the largest difference between the number of stable days and days with complications. This analysis helps identify patterns in the patient's health stability to assess readmission risk.
    

    """
    n = len(string)
    current_sum = 0
    max_sum = 0
    for i in range(n):
        current_sum += 1 if string[i] == '0' else -1
        if current_sum < 0:
            current_sum = 0
        max_sum = max(current_sum, max_sum)
    return max_sum if max_sum else 0