
    Design a function for an adaptive learning system that calculates the total complexity score of practice problems by taking a difficulty level indicator n and summing the squares of the first n even-numbered complexity tiers. The complexity score helps determine the overall challenge level of an automated assignment, where each even number represents a progressively harder practice problem tier.
    

    
def square_Sum(n):
    """
    Design a function for an adaptive learning system that calculates the total complexity score of practice problems by taking a difficulty level indicator n and summing the squares of the first n even-numbered complexity tiers. The complexity score helps determine the overall challenge level of an automated assignment, where each even number represents a progressively harder practice problem tier.
    

    """
def square_Sum(n):
    """
    Design a function for an adaptive learning system that calculates the total complexity score of practice problems by taking a difficulty level indicator n and summing the squares of the first n even-numbered complexity tiers. The complexity score helps determine the overall challenge level of an automated assignment, where each even number represents a progressively harder practice problem tier.
    

    """
    return int(2 * n * (n + 1) * (2 * n + 1) / 3)