




from math import pi, sqrt, tan







def        lowerCAmelCase_			(  snake_case_  ):
      if side_length < 0:
            raise ValueError("""surface_area_cube() only accepts non-negative values"""  )
      return 6 * side_length**2







def        lowerCAmelCase_			(  snake_case_,snake_case_,snake_case_  ):
      if length < 0 or breadth < 0 or height < 0:
            raise ValueError("""surface_area_cuboid() only accepts non-negative values"""  )
      return 2 * ((length * breadth) + (breadth * height) + (length * height))







def        lowerCAmelCase_			(  snake_case_  ):
      if radius < 0:
            raise ValueError("""surface_area_sphere() only accepts non-negative values"""  )
      return 4 * pi * radius**2







def        lowerCAmelCase_			(  snake_case_  ):
      if radius < 0:
            raise ValueError("""surface_area_hemisphere() only accepts non-negative values"""  )
      return 3 * pi * radius**2







def        lowerCAmelCase_			(  snake_case_,snake_case_  ):
      if radius < 0 or height < 0:
            raise ValueError("""surface_area_cone() only accepts non-negative values"""  )
      return pi * radius * (radius + (height**2 + radius**2) ** 0.5)







def        lowerCAmelCase_			(  snake_case_,snake_case_,snake_case_  ):
      if radius_a < 0 or radius_a < 0 or height < 0:
            raise ValueError(
                """surface_area_conical_frustum() only accepts non-negative values"""  )
      _A							:  Any    =		(height**2 + (radius_a - radius_a) ** 2) ** 0.5
      return pi * ((slant_height * (radius_a + radius_a)) + radius_a**2 + radius_a**2)







def        lowerCAmelCase_			(  snake_case_,snake_case_  ):
      if radius < 0 or height < 0:
            raise ValueError("""surface_area_cylinder() only accepts non-negative values"""  )
      return 2 * pi * radius * (height + radius)







def        lowerCAmelCase_			(  snake_case_,snake_case_  ):
      if torus_radius < 0 or tube_radius < 0:
            raise ValueError("""surface_area_torus() only accepts non-negative values"""  )
      if torus_radius < tube_radius:
            raise ValueError(
                """surface_area_torus() does not support spindle or self intersecting tori"""  )
      return 4 * pow(snake_case_,2  ) * torus_radius * tube_radius







def        lowerCAmelCase_			(  snake_case_,snake_case_  ):
      if length < 0 or width < 0:
            raise ValueError("""area_rectangle() only accepts non-negative values"""  )
      return length * width







def        lowerCAmelCase_			(  snake_case_  ):
      if side_length < 0:
            raise ValueError("""area_square() only accepts non-negative values"""  )
      return side_length**2







def        lowerCAmelCase_			(  snake_case_,snake_case_  ):
      if base < 0 or height < 0:
            raise ValueError("""area_triangle() only accepts non-negative values"""  )
      return (base * height) / 2







def        lowerCAmelCase_			(  snake_case_,snake_case_,snake_case_  ):
      if sidea < 0 or sidea < 0 or sidea < 0:
            raise ValueError("""area_triangle_three_sides() only accepts non-negative values"""  )
      elif sidea + sidea < sidea or sidea + sidea < sidea or sidea + sidea < sidea:
            raise ValueError("""Given three sides do not form a triangle"""  )
      _A							:  List[str]    =		(sidea + sidea + sidea) / 2
      _A							:  Union[str, Any]    =		sqrt(
          semi_perimeter
          * (semi_perimeter - sidea)
          * (semi_perimeter - sidea)
          * (semi_perimeter - sidea)  )
      return area







def        lowerCAmelCase_			(  snake_case_,snake_case_  ):
      if base < 0 or height < 0:
            raise ValueError("""area_parallelogram() only accepts non-negative values"""  )
      return base * height







def        lowerCAmelCase_			(  snake_case_,snake_case_,snake_case_  ):
      if basea < 0 or basea < 0 or height < 0:
            raise ValueError("""area_trapezium() only accepts non-negative values"""  )
      return 1 / 2 * (basea + basea) * height







def        lowerCAmelCase_			(  snake_case_  ):
      if radius < 0:
            raise ValueError("""area_circle() only accepts non-negative values"""  )
      return pi * radius**2







def        lowerCAmelCase_			(  snake_case_,snake_case_  ):
      if radius_x < 0 or radius_y < 0:
            raise ValueError("""area_ellipse() only accepts non-negative values"""  )
      return pi * radius_x * radius_y







def        lowerCAmelCase_			(  snake_case_,snake_case_  ):
      if diagonal_a < 0 or diagonal_a < 0:
            raise ValueError("""area_rhombus() only accepts non-negative values"""  )
      return 1 / 2 * diagonal_a * diagonal_a







def        lowerCAmelCase_			(  snake_case_,snake_case_  ):
      if not isinstance(snake_case_,snake_case_  ) or sides < 3:
            raise ValueError(
                """area_reg_polygon() only accepts integers greater than or \
equal to three as number of sides"""  )
      elif length < 0:
            raise ValueError(
                """area_reg_polygon() only accepts non-negative values as \
length of a side"""  )
      return (sides * length**2) / (4 * tan(pi / sides  ))
      return (sides * length**2) / (4 * tan(pi / sides  ))


if __name__ == "__main__":
  import doctest

  doctest.testmod(verbose=True)  # verbose so we can see methods missing tests

  print("[DEMO] Areas of various geometric shapes: \n")
  print(f"""Rectangle: {area_rectangle(10, 20) = }""")
  print(f"""Square: {area_square(10) = }""")
  print(f"""Triangle: {area_triangle(10, 10) = }""")
  print(f"""Triangle: {area_triangle_three_sides(5, 12, 13) = }""")
  print(f"""Parallelogram: {area_parallelogram(10, 20) = }""")
  print(f"""Rhombus: {area_rhombus(10, 20) = }""")
  print(f"""Trapezium: {area_trapezium(10, 20, 30) = }""")
  print(f"""Circle: {area_circle(20) = }""")
  print(f"""Ellipse: {area_ellipse(10, 20) = }""")
  print("\nSurface Areas of various geometric shapes: \n")
  print(f"""Cube: {surface_area_cube(20) = }""")
  print(f"""Cuboid: {surface_area_cuboid(10, 20, 30) = }""")
  print(f"""Sphere: {surface_area_sphere(20) = }""")
  print(f"""Hemisphere: {surface_area_hemisphere(20) = }""")
  print(f"""Cone: {surface_area_cone(10, 20) = }""")
  print(f"""Conical Frustum: {surface_area_conical_frustum(10, 20, 30) = }""")
  print(f"""Cylinder: {surface_area_cylinder(10, 20) = }""")
  print(f"""Torus: {surface_area_torus(20, 10) = }""")
  print(f"""Equilateral Triangle: {area_reg_polygon(3, 10) = }""")
  print(f"""Square: {area_reg_polygon(4, 10) = }""")
  print(f"""Reqular Pentagon: {area_reg_polygon(5, 10) = }""")







from __future__ import annotations







class 		lowercase							:

     def __init__(						self	,  _a = 0       )		->							str:
           _A							:  Any    =		key

     def       a__			(						self	,  _a	,  _a       )		->							list[str]:
           assert isinstance(_a	,  _a       ) and isinstance(_a	,  _a       )

           _A							:  Any    =		key or self.__key or 1

           # make sure key is an appropriate size
           key %= 255

           return [chr(ord(_a       ) ^ key       ) for ch in content]

     def       a__			(						self	,  _a	,  _a       )		->							list[str]:
           assert isinstance(_a	,  _a       ) and isinstance(_a	,  _a       )

           _A							:  List[Any]    =		key or self.__key or 1

           # make sure key is an appropriate size
           key %= 255

           return [chr(ord(_a       ) ^ key       ) for ch in content]

     def       a__			(						self	,  _a	,  _a = 0       )		->							str:
           assert isinstance(_a	,  _a       ) and isinstance(_a	,  _a       )

           _A							:  List[Any]    =		key or self.__key or 1

           # make sure key can be any size
           while key > 255:
                 key -= 255

           # This will be returned
           _A							:  List[str]    =		""""""

           for ch in content:
                 ans += chr(ord(_a       ) ^ key       )

           return ans

     def       a__			(						self	,  _a	,  _a = 0       )		->							str:
           assert isinstance(_a	,  _a       ) and isinstance(_a	,  _a       )

           _A							:  List[str]    =		key or self.__key or 1

           # make sure key can be any size
           while key > 255:
                 key -= 255

           # This will be returned
           _A							:  List[str]    =		""""""

           for ch in content:
                 ans += chr(ord(_a       ) ^ key       )

           return ans

     def       a__			(						self	,  _a	,  _a = 0       )		->							bool:
           assert isinstance(_a	,  _a       ) and isinstance(_a	,  _a       )

           try:
                 with open(_a       ) as fin, open("""encrypt.out"""	,  """w+"""       ) as fout:
                       # actual encrypt-process
                       for line in fin:
                             fout.write(self.encrypt_string(_a	,  _a       )       )

           except OSError:
                 return False

           return True



     def       a__			(						self	,  _a	,  _a       )		->							bool:
           assert isinstance(_a	,  _a       ) and isinstance(_a	,  _a       )

           try:
                 with open(_a       ) as fin, open("""decrypt.out"""	,  """w+"""       ) as fout:
                       # actual encrypt-process
                       for line in fin:
                             fout.write(self.decrypt_string(_a	,  _a       )       )

           except OSError:
                 return False

           return True


# Tests
# crypt = XORCipher()
# key = 67

# # test encrypt
# print(crypt.encrypt("hallo welt",key))
# # test decrypt
# print(crypt.decrypt(crypt.encrypt("hallo welt",key), key))

# # test encrypt_string
# print(crypt.encrypt_string("hallo welt",key))

# # test decrypt_string
# print(crypt.decrypt_string(crypt.encrypt_string("hallo welt",key),key))

# if (crypt.encrypt_file("test.txt",key)):
#       print("encrypt successful")
# else:
#       print("encrypt unsuccessful")

# if (crypt.decrypt_file("encrypt.out",key)):
#       print("decrypt successful")
# else:
#       print("decrypt unsuccessful")

