from multiprocessing import Lock, Pipe, Process

# lock used to ensure that two processes do not access a pipe at the same time
_UpperCAmelCase          =						Lock()




def 							UpperCamelCase		(			__lowercase		:					str		,__lowercase		:					List[Any]		,__lowercase		:					Optional[Any]		,__lowercase		:					str		,__lowercase		:					Optional[int]		,__lowercase		:					List[str]		,__lowercase		:					List[Any]      ):
		'''simple docstring'''




		global process_lock

		# we perform n swaps since after n swaps we know we are sorted
		# we *could* stop early if we are sorted already, but it takes as long to
		# find out we are sorted as it does to sort the list with this algorithm
		for i in range(0		,10      ):
				if (i + position) % 2 == 0 and r_send is not None:
						# send your value to your right neighbor
						process_lock.acquire()
						r_send[1].send(__lowercase      )
						process_lock.release()

						# receive your right neighbor's value
						process_lock.acquire()
						A_						:							str      = rr_cv[0].recv()
						process_lock.release()

						# take the lower value since you are on the left
						A_						:							int      = min(__lowercase		,__lowercase      )
				elif (i + position) % 2 != 0 and l_send is not None:
						# send your value to your left neighbor
						process_lock.acquire()
						l_send[1].send(__lowercase      )
						process_lock.release()

						# receive your left neighbor's value
						process_lock.acquire()
						A_						:							int      = lr_cv[0].recv()
						process_lock.release()

						# take the higher value since you are on the right
						A_						:							Dict      = max(__lowercase		,__lowercase      )
    # after all swaps are performed, send the values back to main
		result_pipe[1].send(__lowercase      )




def 							UpperCamelCase		(			__lowercase		:					Union[str, Any]      ):
		'''simple docstring'''




		A_						:							Tuple      = []
		A_						:							Union[str, Any]      = []
		# initialize the list of pipes where the values will be retrieved
		for _ in arr:
				result_pipe.append(Pipe()      )
		# creates the processes
		# the first and last process only have one neighbor so they are made outside
		# of the loop
		A_						:							str      = Pipe()
		A_						:							Optional[Any]      = Pipe()
		process_array_.append(
		    Process(
		        target=__lowercase		,args=(0, arr[0], None, temp_rs, None, temp_rr, result_pipe[0])		,)      )
		A_						:							Optional[Any]      = temp_rs
		A_						:							Any      = temp_rr

		for i in range(1		,len(__lowercase      ) - 1      ):
				A_						:							int      = Pipe()
				A_						:							Dict      = Pipe()
				process_array_.append(
				    Process(
				        target=__lowercase		,args=(i, arr[i], temp_ls, temp_rs, temp_lr, temp_rr, result_pipe[i])		,)      )
				A_						:							Union[str, Any]      = temp_rs
				A_						:							int      = temp_rr

		process_array_.append(
		    Process(
		        target=__lowercase		,args=(
		            len(__lowercase      ) - 1,
		            arr[len(__lowercase      ) - 1],
		            temp_ls,
		            None,
		            temp_lr,
		            None,
		            result_pipe[len(__lowercase      ) - 1],
		        )		,)      )

		# start the processes
		for p in process_array_:
				p.start()

		# wait for the processes to end and write their values to the list
		for p in range(0		,len(__lowercase      )      ):
				A_						:							Tuple      = result_pipe[p][0].recv()
				process_array_[p].join()
		return arr




def 							UpperCamelCase		(			):
		'''simple docstring'''




		A_						:							List[str]      = list(range(10		,0		,-1      )      )
		print('Initial List'      )
		print(*__lowercase      )
		A_						:							int      = odd_even_transposition(__lowercase      )
		print('Sorted List\n'      )
		print(*__lowercase      )


if __name__ == "__main__":
	main()










def     lowercase	(    a = 50 ):



		'''simple docstring'''




		SCREAMING_SNAKE_CASE_				:int				     =						[1] * (length + 1)

		for row_length in range(3     , length + 1 ):
				for block_length in range(3     , row_length + 1 ):
						for block_start in range(row_length - block_length ):
								ways_number[row_length] += ways_number[
								    row_length - block_start - block_length - 1
								]

						ways_number[row_length] += 1

		return ways_number[length]


if __name__ == "__main__":
		print(F'''{solution() = }''')






