



'''simple docstring'''

from math import pi



def 	__lowerCamelCase	( lowerCAmelCase_		,     lowerCAmelCase_    )     -> float:
		return 2 * pi * radius * (angle / 360)


if __name__ == "__main__":
							print(arc_length(90, 10))









'''simple docstring'''

def 	__lowerCamelCase	( )     -> Union[str, Any]:
		_a	: Optional[Any]								=				[]
		_a	: List[str]								=				1

		while len(lowerCAmelCase_    ) < 1E6:
				constant.append(str(lowerCAmelCase_    )    )
				i += 1

		_a	: Optional[Any]								=				''.join(lowerCAmelCase_    )

		return (
		    int(constant[0]    )
		    * int(constant[9]    )
		    * int(constant[99]    )
		    * int(constant[999]    )
		    * int(constant[9999]    )
		    * int(constant[99999]    )
		    * int(constant[999999]    )
		)


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




