
    Given a patient's vital sign monitoring data where '0' represents stable readings and '1' represents readings above normal threshold, find the time window that shows the most significant difference between stable and concerning measurements. The difference is calculated by subtracting the count of above-threshold readings from stable readings within any continuous monitoring period.
    

    
def find_length(string):
    """
    Given a patient's vital sign monitoring data where '0' represents stable readings and '1' represents readings above normal threshold, find the time window that shows the most significant difference between stable and concerning measurements. The difference is calculated by subtracting the count of above-threshold readings from stable readings within any continuous monitoring period.
    

    """
def find_length(string):
    """
    Given a patient's vital sign monitoring data where '0' represents stable readings and '1' represents readings above normal threshold, find the time window that shows the most significant difference between stable and concerning measurements. The difference is calculated by subtracting the count of above-threshold readings from stable readings within any continuous monitoring period.
    

    """
    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