
    Write a function that calculates the total scanning boundary length required for content moderation algorithms to process a square profile image, given its pixel dimension as input. The scanning boundary represents the outer edge that must be analyzed for detecting potentially inappropriate content in profile photos.
    

    
def square_perimeter(a):
    """
    Write a function that calculates the total scanning boundary length required for content moderation algorithms to process a square profile image, given its pixel dimension as input. The scanning boundary represents the outer edge that must be analyzed for detecting potentially inappropriate content in profile photos.
    

    """
def square_perimeter(a):
    """
    Write a function that calculates the total scanning boundary length required for content moderation algorithms to process a square profile image, given its pixel dimension as input. The scanning boundary represents the outer edge that must be analyzed for detecting potentially inappropriate content in profile photos.
    

    """
    perimeter = 4 * a
    return perimeter