


from __future__ import annotations





def 						_lowerCamelCase		(							SCREAMING_SNAKE_CASE_				: list[list[int]]	,	SCREAMING_SNAKE_CASE_				: list[list[int]]      ):






							"""simple docstring"""



							assert len(SCREAMING_SNAKE_CASE_      ) == len(SCREAMING_SNAKE_CASE_      )

							a_       :   Optional[Any]			=	len(SCREAMING_SNAKE_CASE_      )
							a_       :   Tuple			=	list(range(SCREAMING_SNAKE_CASE_      )      )
							a_       :   Optional[int]			=	[-1] * n  # who the donor has donated to
							a_       :   List[Any]			=	[-1] * n  # who the recipient has received from
							a_       :   Optional[int]			=	[0] * n

							while unmatched_donors:
														a_       :   Any			=	unmatched_donors[0]
														a_       :   Optional[int]			=	donor_pref[donor]
														a_       :   str			=	donor_preference[num_donations[donor]]
														num_donations[donor] += 1
														a_       :   Any			=	recipient_pref[recipient]
														a_       :   List[Any]			=	rec_record[recipient]

														if prev_donor != -1:
																					if rec_preference.index(SCREAMING_SNAKE_CASE_      ) > rec_preference.index(SCREAMING_SNAKE_CASE_      ):
																												a_       :   Union[str, Any]			=	donor
																												a_       :   List[str]			=	recipient
																												unmatched_donors.append(SCREAMING_SNAKE_CASE_      )
																												unmatched_donors.remove(SCREAMING_SNAKE_CASE_      )
														else:
																					a_       :   List[str]			=	donor
																					a_       :   str			=	recipient
																					unmatched_donors.remove(SCREAMING_SNAKE_CASE_      )
							return donor_record






from __future__ import annotations





def 						_lowerCamelCase		(							SCREAMING_SNAKE_CASE_				: list      ):






							"""simple docstring"""



							a_       :   Tuple			=	sorted(SCREAMING_SNAKE_CASE_      )
							a_       :   Tuple			=	len(SCREAMING_SNAKE_CASE_      )
							a_       :   Tuple			=	length >> 1
							return (
							    (sorted_list[mid_index] + sorted_list[mid_index - 1]) / 2
							    if length % 2 == 0
							    else sorted_list[mid_index]
							)





def 						_lowerCamelCase		(							):






							"""simple docstring"""



							import doctest

							doctest.testmod()


if __name__ == "__main__":
	main()


