


'''simple docstring'''
def     a   (    __a     )						->			str:



					'''simple docstring'''






					UpperCamelCase__     :Any							      =				[]
					UpperCamelCase__     :Dict							      =				[]
					UpperCamelCase__     :List[str]							      =				{
					    '''^''': 3,
					    '''*''': 2,
					    '''/''': 2,
					    '''%''': 2,
					    '''+''': 1,
					    '''-''': 1,
					}  # Priority of each operator
					UpperCamelCase__     :List[str]							      =				len(__a     ) if (len(__a     ) > 7) else 7

					# Print table header for output
					print(
					    '''Symbol'''.center(8     )				,      '''Stack'''.center(__a     )				,      '''Postfix'''.center(__a     )				,      sep=''' | '''				,      )
					print('''-''' * (print_width * 3 + 7)     )

					for x in infix:
										if x.isalpha() or x.isdigit():
															post_fix.append(__a     )  # if x is Alphabet / Digit, add it to Postfix
										elif x == "(":
															stack.append(__a     )  # if x is "(" push to Stack
										elif x == ")":  # if x is ")" pop stack until "(" is encountered
															while stack[-1] != "(":
																				post_fix.append(stack.pop()     )  # Pop stack & add the content to Postfix
															stack.pop()
										else:
															if len(__a     ) == 0:
																				stack.append(__a     )  # If stack is empty, push x to stack
															else:  # while priority of x is not > priority of element in the stack
																				while len(__a     ) > 0 and priority[x] <= priority[stack[-1]]:
																									post_fix.append(stack.pop()     )  # pop stack & add to Postfix
																				stack.append(__a     )  # push x to stack

										print(
										    x.center(8     )				,      (''''''.join(__a     )).ljust(__a     )				,      (''''''.join(__a     )).ljust(__a     )				,      sep=''' | '''				,      )  # Output in tabular format

					while len(__a     ) > 0:  # while stack is not empty
										post_fix.append(stack.pop()     )  # pop stack & add to Postfix
										print(
										    ''' '''.center(8     )				,      (''''''.join(__a     )).ljust(__a     )				,      (''''''.join(__a     )).ljust(__a     )				,      sep=''' | '''				,      )  # Output in tabular format

					return "".join(__a     )  # return Postfix as str


def     a   (    __a     )						->			Union[str, Any]:



					'''simple docstring'''






					UpperCamelCase__     :Any							      =				list(infix[::-1]     )  # reverse the infix equation

					for i in range(len(__a     )     ):
										if infix[i] == "(":
															UpperCamelCase__     :Dict							      =				''')'''  # change "(" to ")"
										elif infix[i] == ")":
															UpperCamelCase__     :Tuple							      =				'''('''  # change ")" to "("

					return (infix_2_postfix(''''''.join(__a     )     ))[
					    ::-1
					]  # call infix_2_postfix on Infix, return reverse of Postfix


if __name__ == "__main__":
		__snake_case							   =  input('''\nEnter an Infix Equation = ''')  # Input an Infix equation
		__snake_case							   =  ''''''.join(Infix.split())  # Remove spaces from the input
		print('''\n\t''', Infix, '''(Infix) -> ''', infix_2_prefix(Infix), '''(Prefix)''')



'''simple docstring'''
import json
import logging
import os
import sys
from time import time
from unittest.mock import patch

from transformers.testing_utils import TestCasePlus, require_torch_tpu


logging.basicConfig(level=logging.DEBUG)

__snake_case							   =  logging.getLogger()


def     a   (    __a     )						->			Dict:



					'''simple docstring'''






					UpperCamelCase__     :str							      =				{}
					UpperCamelCase__     :Dict							      =				os.path.join(__a				,      '''all_results.json'''     )
					if os.path.exists(__a     ):
										with open(__a				,      '''r'''     ) as f:
															UpperCamelCase__     :int							      =				json.load(__a     )
					else:
										raise ValueError(f'''can\'t find {path}'''     )
					return results


__snake_case							   =  logging.StreamHandler(sys.stdout)
logger.addHandler(stream_handler)







@require_torch_tpu
class      lowercase			(							A__      ):

		"""simple docstring"""

		def 					lowerCAmelCase__       (	self							):

							'''simple docstring'''


							import xla_spawn

							UpperCamelCase__     :Any							      =				self.get_auto_remove_tmp_dir()
							UpperCamelCase__     :List[str]							      =				F'''
            ./examples/pytorch/text-classification/run_glue.py
            --num_cores=8
            ./examples/pytorch/text-classification/run_glue.py
            --model_name_or_path distilbert-base-uncased
            --output_dir {tmp_dir}
            --overwrite_output_dir
            --train_file ./tests/fixtures/tests_samples/MRPC/train.csv
            --validation_file ./tests/fixtures/tests_samples/MRPC/dev.csv
            --do_train
            --do_eval
            --debug tpu_metrics_debug
            --per_device_train_batch_size=2
            --per_device_eval_batch_size=1
            --learning_rate=1e-4
            --max_steps=10
            --warmup_steps=2
            --seed=42
            --max_seq_length=128
            '''.split()

							with patch.object(UpperCamelCase_					,     '''argv'''					,     UpperCamelCase_							):
												UpperCamelCase__     :List[Any]							      =				time()
												xla_spawn.main()
												UpperCamelCase__     :List[Any]							      =				time()

												UpperCamelCase__     :Tuple							      =				get_results(UpperCamelCase_							)
												self.assertGreaterEqual(result['''eval_accuracy''']					,     0.75							)

												# Assert that the script takes less than 500 seconds to make sure it doesn't hang.
												self.assertLess(end - start					,     500							)




		def 					lowerCAmelCase__       (	self							):

							'''simple docstring'''


							import xla_spawn

							UpperCamelCase__     :Tuple							      =				'''
            ./tests/test_trainer_tpu.py
            --num_cores=8
            ./tests/test_trainer_tpu.py
            '''.split()
							with patch.object(UpperCamelCase_					,     '''argv'''					,     UpperCamelCase_							):
												xla_spawn.main()