
    Given a user's content interaction history represented as a sequence where 0 indicates no interaction and 1 indicates positive interaction, find the time period (continuous sequence of interactions) that shows the maximum difference between passive and active engagement. This analysis will help identify significant behavior patterns for improving friend recommendations.
    

    
def find_length(string):
    """
    Given a user's content interaction history represented as a sequence where 0 indicates no interaction and 1 indicates positive interaction, find the time period (continuous sequence of interactions) that shows the maximum difference between passive and active engagement. This analysis will help identify significant behavior patterns for improving friend recommendations.
    

    """
def find_length(string):
    """
    Given a user's content interaction history represented as a sequence where 0 indicates no interaction and 1 indicates positive interaction, find the time period (continuous sequence of interactions) that shows the maximum difference between passive and active engagement. This analysis will help identify significant behavior patterns for improving friend recommendations.
    

    """
    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