


'''simple docstring'''





def 			lowerCAmelCase (		)-> List[Any]:
				lowerCAmelCase_ :      List[str]    				=				[]
				lowerCAmelCase_ :      int    				=				1

				while len(lowerCAmelCase_ ) < 1e6:
								constant.append(str(lowerCAmelCase_ ) )
								i += 1

				lowerCAmelCase_ :      Tuple    				=				''''''.join(lowerCAmelCase_ )

				return (
				    int(constant[0] )
				    * int(constant[9] )
				    * int(constant[99] )
				    * int(constant[999] )
				    * int(constant[9_999] )
				    * int(constant[99_999] )
				    * int(constant[999_999] )
				)


if __name__ == "__main__":
						print(solution())



from __future__ import annotations

from math import pi



def 			lowerCAmelCase (		lowerCAmelCase_ ,   lowerCAmelCase_ ,   lowerCAmelCase_ )-> dict[str, float]:

				if (inductance, frequency, reactance).count(0 ) != 1:
								raise ValueError('''One and only one argument must be 0''' )
				if inductance < 0:
								raise ValueError('''Inductance cannot be negative''' )
				if frequency < 0:
								raise ValueError('''Frequency cannot be negative''' )
				if reactance < 0:
								raise ValueError('''Inductive reactance cannot be negative''' )
				if inductance == 0:
								return {"inductance": reactance / (2 * pi * frequency)}
				elif frequency == 0:
								return {"frequency": reactance / (2 * pi * inductance)}
				elif reactance == 0:
								return {"reactance": 2 * pi * frequency * inductance}
				else:
								raise ValueError('''Exactly one argument must be 0''' )


if __name__ == "__main__":
						import doctest

						doctest.testmod()