


"""simple docstring"""




from __future__ import annotations





def 			a_   (  lowercase__   :float | int, lowercase__   :float | int, lowercase__   :float | int, ):
			if not all((nth_term, start_term_a, common_ratio_r)    ):
						return []
			__lowerCamelCase        =			[]
			__lowerCamelCase        =			1
			__lowerCamelCase        =			common_ratio_r
			for _ in range(int(lowercase__    )    ):
						if not series:
									series.append(lowercase__    )
						else:
									power += 1
									series.append(float(start_term_a * multiple    )    )
									__lowerCamelCase        =			pow(float(lowercase__    ), lowercase__    )
			return series


if __name__ == "__main__":
					import doctest

					doctest.testmod()

					__magic_name__	:   Any          =							float(input('Enter the last number (n term) of the Geometric Series'))
					__magic_name__	:   Dict          =							float(input('Enter the starting term (a) of the Geometric Series'))
					__magic_name__	:   Tuple          =							float(
					    input('Enter the common ratio between two terms (r) of the Geometric Series')
					)
					print('Formula of Geometric Series => a + ar + ar^2 ... +ar^n')
					print(geometric_series(nth_term, start_term_a, common_ratio_r))








"""simple docstring"""




def 			a_   (  lowercase__   :str, lowercase__   :int = 13    ):
			__lowerCamelCase        =			""""""
			for c in s:
						if "A" <= c <= "Z":
									out += chr(ord("""A"""    ) + (ord(lowercase__    ) - ord("""A"""    ) + n) % 26    )
						elif "a" <= c <= "z":
									out += chr(ord("""a"""    ) + (ord(lowercase__    ) - ord("""a"""    ) + n) % 26    )
						else:
									out += c
			return out





def 			a_   (  ):
			__lowerCamelCase        =			input("""Enter message: """    )

			__lowerCamelCase        =			dencrypt(lowercase__, 13    )
			print("""Encryption:""", lowercase__    )

			__lowerCamelCase        =			dencrypt(lowercase__, 13    )
			print("""Decryption: """, lowercase__    )


if __name__ == "__main__":
					import doctest

					doctest.testmod()
					main()




