"""
Surface area and Volume of octagonal prism
Author : Daniel Herrmann
"""

title = "Right Regular Octagonal Prism Surface Area and Volume Calculator"
print("*" * len(title))
print(title)
print("*" * len(title))
print("")

import math

value_1 = input("Enter a base edge value : ")
value_2 = input("Enter the height of prism : ")
print("")

a = int(value_1)
h = int(value_2)

area_of_prism = 8*a*h+4*(1+math.sqrt(2))*a**2

answer_area = str(round(area_of_prism, 3))

volume_of_prism = 2*(1+math.sqrt(2))*a**2*h

answer_volume = str(round(volume_of_prism,3))


print("Base Edge :", value_1)
print("Height :", value_2)
print("")


print("Surface area : ", answer_area)
print("Volume", answer_volume)