






import asyncio
import os
import re
import sys
import tempfile
import unittest
from contextlib import contextmanager
from copy import deepcopy
from distutils.util import strtobool
from enum import Enum
from importlib.util import find_spec
from pathlib import Path
from unittest.mock import patch

import pyarrow as pa
import pytest
import requests
from packaging import version

from datasets import config


if config.PY_VERSION < version.parse('3.8'):
				import importlib_metadata
else:
				import importlib.metadata as importlib_metadata




def      __A					(     _lowercase					,			_lowercase=False ):

					'''simple docstring'''







					try:
										_A								= os.environ[key]
					except KeyError:
										# KEY isn't set, default to `default`.
										_A								= default
					else:
										# KEY is set, convert it to True or False.
										try:
															_A								= strtobool(_lowercase )
										except ValueError:
															# More values are supported, but let's keep the message simple.
															raise ValueError(f"""If set, {key} must be yes or no.""" )
					return _value


__A      =				parse_flag_from_env('RUN_SLOW', default=False)
__A      =				parse_flag_from_env('RUN_REMOTE', default=False)
__A      =				parse_flag_from_env('RUN_LOCAL', default=True)
__A      =				parse_flag_from_env('RUN_PACKAGED', default=True)

# Compression
__A      =				pytest.mark.skipif(not config.LZ4_AVAILABLE, reason='test requires lz4')
__A      =				pytest.mark.skipif(not config.PY7ZR_AVAILABLE, reason='test requires py7zr')
__A      =				pytest.mark.skipif(not config.ZSTANDARD_AVAILABLE, reason='test requires zstandard')

# Audio
__A      =				pytest.mark.skipif(
    # On Windows and OS X, soundfile installs sndfile
    find_spec('soundfile') is None or version.parse(importlib_metadata.version('soundfile')) < version.parse('0.12.0'),
    reason='test requires sndfile>=0.12.1: \'pip install \"soundfile>=0.12.1\"\'; ',
)

# Beam
__A      =				pytest.mark.skipif(
    not config.BEAM_AVAILABLE or config.DILL_VERSION >= version.parse('0.3.2'),
    reason='test requires apache-beam and a compatible dill version',
)

# Dill-cloudpickle compatibility
__A      =				pytest.mark.skipif(
    config.DILL_VERSION <= version.parse('0.3.2'),
    reason='test requires dill>0.3.2 for cloudpickle compatibility',
)

# Windows
__A      =				pytest.mark.skipif(
    sys.platform == 'win32',
    reason='test should not be run on Windows',
)




def      __A					(     _lowercase ):

					'''simple docstring'''







					try:
										import faiss  # noqa
					except ImportError:
										_A								= unittest.skip('''test requires faiss''' )(_lowercase )
					return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					try:
										import regex  # noqa
					except ImportError:
										_A								= unittest.skip('''test requires regex''' )(_lowercase )
					return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					try:
										import elasticsearch  # noqa
					except ImportError:
										_A								= unittest.skip('''test requires elasticsearch''' )(_lowercase )
					return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					try:
										import sqlalchemy  # noqa
					except ImportError:
										_A								= unittest.skip('''test requires sqlalchemy''' )(_lowercase )
					return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					if not config.TORCH_AVAILABLE:
										_A								= unittest.skip('''test requires PyTorch''' )(_lowercase )
					return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					if not config.TF_AVAILABLE:
										_A								= unittest.skip('''test requires TensorFlow''' )(_lowercase )
					return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					if not config.JAX_AVAILABLE:
										_A								= unittest.skip('''test requires JAX''' )(_lowercase )
					return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					if not config.PIL_AVAILABLE:
										_A								= unittest.skip('''test requires Pillow''' )(_lowercase )
					return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					try:
										import transformers  # noqa F401
					except ImportError:
										return unittest.skip('''test requires transformers''' )(_lowercase )
					else:
										return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					try:
										import tiktoken  # noqa F401
					except ImportError:
										return unittest.skip('''test requires tiktoken''' )(_lowercase )
					else:
										return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					try:
										import spacy  # noqa F401
					except ImportError:
										return unittest.skip('''test requires spacy''' )(_lowercase )
					else:
										return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					def _require_spacy_model(_lowercase ):
										try:
															import spacy  # noqa F401

															spacy.load(_lowercase )
										except ImportError:
															return unittest.skip('''test requires spacy''' )(_lowercase )
										except OSError:
															return unittest.skip('''test requires spacy model \'{}\''''.format(_lowercase ) )(_lowercase )
										else:
															return test_case

					return _require_spacy_model




def      __A					(     _lowercase ):

					'''simple docstring'''







					try:
										import pyspark  # noqa F401
					except ImportError:
										return unittest.skip('''test requires pyspark''' )(_lowercase )
					else:
										return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					try:
										import joblibspark  # noqa F401
					except ImportError:
										return unittest.skip('''test requires joblibspark''' )(_lowercase )
					else:
										return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					if not _run_slow_tests or _run_slow_tests == 0:
										_A								= unittest.skip('''test is slow''' )(_lowercase )
					return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					if not _run_local_tests or _run_local_tests == 0:
										_A								= unittest.skip('''test is local''' )(_lowercase )
					return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					if not _run_packaged_tests or _run_packaged_tests == 0:
										_A								= unittest.skip('''test is packaged''' )(_lowercase )
					return test_case




def      __A					(     _lowercase ):

					'''simple docstring'''







					if not _run_remote_tests or _run_remote_tests == 0:
										_A								= unittest.skip('''test requires remote''' )(_lowercase )
					return test_case




def      __A					(     *_lowercase ):

					'''simple docstring'''







					def decorate(cls ):
										for name, fn in cls.__dict__.items():
															if callable(_lowercase ) and name.startswith('''test''' ):
																				for decorator in decorators:
																									_A								= decorator(_lowercase )
																				setattr(cls					,			_lowercase					,			_lowercase )
										return cls

					return decorate





class 						SCREAMING_SNAKE_CASE				( UpperCamelCase_					):





							"""simple docstring"""

							pass





class 						SCREAMING_SNAKE_CASE				( UpperCamelCase_					):





							"""simple docstring"""

							A_						  =					0
							A_						  =					1
							A_						  =					2




@contextmanager
def      __A					(     _lowercase=OfflineSimulationMode.CONNECTION_FAILS					,			_lowercase=1e-16 ):

					'''simple docstring'''







					_A								= requests.Session().request

					def timeout_request(_lowercase					,			_lowercase					,			_lowercase					,			**_lowercase ):
										# Change the url to an invalid url so that the connection hangs
										_A								= '''https://10.255.255.1'''
										if kwargs.get('''timeout''' ) is None:
															raise RequestWouldHangIndefinitelyError(
															    f"""Tried a call to {url} in offline mode with no timeout set. Please set a timeout.""" )
										_A								= timeout
										try:
															return online_request(_lowercase					,			_lowercase					,			**_lowercase )
										except Exception as e:
															# The following changes in the error are just here to make the offline timeout error prettier
															_A								= url
															_A								= e.args[0]
															_A								= (max_retry_error.args[0].replace('''10.255.255.1'''					,			f"""OfflineMock[{url}]""" ),)
															_A								= (max_retry_error,)
															raise

					def raise_connection_error(_lowercase					,			_lowercase					,			**_lowercase ):
										raise requests.ConnectionError('''Offline mode is enabled.'''					,			request=_lowercase )

					if mode is OfflineSimulationMode.CONNECTION_FAILS:
										with patch('''requests.Session.send'''					,			_lowercase ):
															yield
					elif mode is OfflineSimulationMode.CONNECTION_TIMES_OUT:
										# inspired from https://stackoverflow.com/a/904609
										with patch('''requests.Session.request'''					,			_lowercase ):
															yield
					elif mode is OfflineSimulationMode.HF_DATASETS_OFFLINE_SET_TO_1:
										with patch('''datasets.config.HF_DATASETS_OFFLINE'''					,			_lowercase ):
															yield
					else:
										raise ValueError('''Please use a value from the OfflineSimulationMode enum.''' )




@contextmanager
def      __A					(     *_lowercase					,			**_lowercase ):

					'''simple docstring'''







					_A								= str(Path().resolve() )
					with tempfile.TemporaryDirectory(*_lowercase					,			**_lowercase ) as tmp_dir:
										try:
															os.chdir(_lowercase )
															yield
										finally:
															os.chdir(_lowercase )




@contextmanager
def      __A					(     ):

					'''simple docstring'''







					import gc

					gc.collect()
					_A								= pa.total_allocated_bytes()
					yield
					assert pa.total_allocated_bytes() - previous_allocated_memory > 0, "Arrow memory didn't increase."




@contextmanager
def      __A					(     ):

					'''simple docstring'''







					import gc

					gc.collect()
					_A								= pa.total_allocated_bytes()
					yield
					assert pa.total_allocated_bytes() - previous_allocated_memory <= 0, "Arrow memory wasn't expected to increase."




def      __A					(     _lowercase					,			_lowercase ):

					'''simple docstring'''







					return deepcopy(_lowercase ).integers(0					,			1_00					,			10 ).tolist() == deepcopy(_lowercase ).integers(0					,			1_00					,			10 ).tolist()




def      __A					(     _lowercase ):

					'''simple docstring'''







					import decorator
					from requests.exceptions import HTTPError

					def _wrapper(_lowercase					,			*_lowercase					,			**_lowercase ):
										try:
															return func(*_lowercase					,			**_lowercase )
										except HTTPError as err:
															if str(_lowercase ).startswith('''500''' ) or str(_lowercase ).startswith('''502''' ):
																				pytest.xfail(str(_lowercase ) )
															raise err

					return decorator.decorator(_wrapper					,			_lowercase )





class 						SCREAMING_SNAKE_CASE				:





							"""simple docstring"""

							def __init__(  self:   Optional[Any]		,     __A:   str		,     __A:   Tuple		,     __A:   str   )    ->				Dict:
												_A								= returncode
												_A								= stdout
												_A								= stderr




async def      __A					(     _lowercase					,			_lowercase ):

					'''simple docstring'''







					while True:
										_A								= await stream.readline()
										if line:
															callback(_lowercase )
										else:
															break




async def      __A					(     _lowercase					,			_lowercase=None					,			_lowercase=None					,			_lowercase=None					,			_lowercase=False					,			_lowercase=False ):

					'''simple docstring'''







					if echo:
										print('''\nRunning: '''					,			''' '''.join(_lowercase ) )

					_A								= await asyncio.create_subprocess_exec(
					    cmd[0]					,			*cmd[1:]					,			stdin=_lowercase					,			stdout=asyncio.subprocess.PIPE					,			stderr=asyncio.subprocess.PIPE					,			env=_lowercase					,			)

					# note: there is a warning for a possible deadlock when using `wait` with huge amounts of data in the pipe
					# https://docs.python.org/3/library/asyncio-subprocess.html#asyncio.asyncio.subprocess.Process.wait
					#
					# If it starts hanging, will need to switch to the following code. The problem is that no data
					# will be seen until it's done and if it hangs for example there will be no debug info.
					# out, err = await p.communicate()
					# return _RunOutput(p.returncode, out, err)

					_A								= []
					_A								= []

					def tee(_lowercase					,			_lowercase					,			_lowercase					,			_lowercase="" ):
										_A								= line.decode('''utf-8''' ).rstrip()
										sink.append(_lowercase )
										if not quiet:
															print(_lowercase					,			_lowercase					,			file=_lowercase )

    # XXX: the timeout doesn't seem to make any difference here
					await asyncio.wait(
					    [
					        _read_stream(p.stdout					,			lambda _lowercase : tee(_lowercase					,			_lowercase					,			sys.stdout					,			label='''stdout:''' ) ),
					        _read_stream(p.stderr					,			lambda _lowercase : tee(_lowercase					,			_lowercase					,			sys.stderr					,			label='''stderr:''' ) ),
					    ]					,			timeout=_lowercase					,			)
					return _RunOutput(await p.wait()					,			_lowercase					,			_lowercase )




def      __A					(     _lowercase					,			_lowercase=None					,			_lowercase=None					,			_lowercase=1_80					,			_lowercase=False					,			_lowercase=True ):

					'''simple docstring'''







					_A								= asyncio.get_event_loop()
					_A								= loop.run_until_complete(
					    _stream_subprocess(_lowercase					,			env=_lowercase					,			stdin=_lowercase					,			timeout=_lowercase					,			quiet=_lowercase					,			echo=_lowercase ) )

					_A								= ''' '''.join(_lowercase )
					if result.returncode > 0:
										_A								= '''\n'''.join(result.stderr )
										raise RuntimeError(
										    f"""'{cmd_str}' failed with returncode {result.returncode}\n\n"""
										    f"""The combined stderr from workers follows:\n{stderr}""" )

					# check that the subprocess actually did run and produced some output, should the test rely on
					# the remote side to do the testing
					if not result.stdout and not result.stderr:
										raise RuntimeError(f"""'{cmd_str}' produced no output.""" )

					return result




def      __A					(     ):

					'''simple docstring'''







					_A								= os.environ.get('''PYTEST_XDIST_WORKER'''					,			'''gw0''' )
					_A								= re.sub(R'''^gw'''					,			''''''					,			_lowercase					,			0					,			re.M )
					return int(_lowercase )




def      __A					(     ):

					'''simple docstring'''







					_A								= 2_95_00
					_A								= pytest_xdist_worker_id()
					return port + uniq_delta












def      __A					(     _lowercase = 1_00_00_00 ):

					'''simple docstring'''







					_A								= 1
					_A								= 1
					_A								= {1: 1}

					for inputa in range(2					,			_lowercase ):
										_A								= 0
										_A								= inputa

										while True:
															if number in counters:
																				counter += counters[number]
																				break
															if number % 2 == 0:
																				number //= 2
																				counter += 1
															else:
																				_A								= (3 * number) + 1
																				counter += 1

										if inputa not in counters:
															_A								= counter

										if counter > pre_counter:
															_A								= inputa
															_A								= counter
					return largest_number


if __name__ == "__main__":
				print(solution(int(input().strip())))



