from math import pi, tan

def polysum(n, s):
    '''
    Input integer n is number of sides of a regular polygon
    Input: integer s is length of sides of a regular polygon
    Returns the sum of the area and the square of the perimeter of the polygon
    rounded to 4 decimal places
    '''
    def area(n, s):
        '''
        Input integer n is number of sides of a regular polygon
        Input: integer s is length of sides of a regular polygon
        Returns the area of the polygon
        '''
        numerator = 0.25 * n * s ** 2
        denominator = tan(pi / n)
        return numerator / denominator

    def perimSquare(n, s):
        '''
        Input: integer n is number of sides of a regular polygon
        Input: integer s is length of sides of a regular polygon
        Returns the square of the perimeter of the polygon
        '''
        return (n * s) ** 2

    a = area(n, s)
    p = perimSquare(n, s)
    return round(a + p, 4)