
    Given a number of delivery zones with balanced bi-directional traffic flow, calculate the total route complexity score by finding the sum of squared traffic density values for these zones. Each zone's traffic density value is represented by consecutive even numbers starting from 2, and only zones with balanced traffic flow are considered in the calculation.
    

    
def square_Sum(n):
    """
    Given a number of delivery zones with balanced bi-directional traffic flow, calculate the total route complexity score by finding the sum of squared traffic density values for these zones. Each zone's traffic density value is represented by consecutive even numbers starting from 2, and only zones with balanced traffic flow are considered in the calculation.
    

    """
def square_Sum(n):
    """
    Given a number of delivery zones with balanced bi-directional traffic flow, calculate the total route complexity score by finding the sum of squared traffic density values for these zones. Each zone's traffic density value is represented by consecutive even numbers starting from 2, and only zones with balanced traffic flow are considered in the calculation.
    

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