



'''simple docstring'''

def a_     (    __UpperCAmelCase					)				->					List[str]:





			"""simple docstring"""







			snake_case:    Union[str, Any]      							=[]
			snake_case:    Optional[int]      							=[]
			snake_case:    Union[str, Any]      							={
			    '^': 3,
			    '*': 2,
			    '/': 2,
			    '%': 2,
			    '+': 1,
			    '-': 1,
			}  # Priority of each operator
			snake_case:    int      							=len(__UpperCAmelCase					) if (len(__UpperCAmelCase					) > 7) else 7

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

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

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

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

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







def a_     (    __UpperCAmelCase					)				->					List[Any]:





			"""simple docstring"""







			snake_case:    Optional[int]      							=list(infix[::-1]					)  # reverse the infix equation

			for i in range(len(__UpperCAmelCase					)					):
						if infix[i] == "(":
									snake_case:    List[Any]      							=')'  # change "(" to ")"
						elif infix[i] == ")":
									snake_case:    Dict      							='('  # change ")" to "("

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


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









'''simple docstring'''

import json
import os
import unittest

from transformers import MgpstrTokenizer
from transformers.models.mgp_str.tokenization_mgp_str import VOCAB_FILES_NAMES
from transformers.testing_utils import require_tokenizers

from ...test_tokenization_common import TokenizerTesterMixin






@require_tokenizers
class 						a_		(     snake_case    ,   unittest.TestCase    ):
							UpperCAmelCase			:		int        =				MgpstrTokenizer
							UpperCAmelCase			:		List[Any]        =				False
							UpperCAmelCase			:		Optional[int]        =				{}
							UpperCAmelCase			:		Any        =				False


							def    UpperCamelCase     (				self   :						Any			)			->					Dict:
										super().setUp()

										# fmt: off
										snake_case:    List[Any]      							=['[GO]', '[s]', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
										# fmt: on
										snake_case:    Union[str, Any]      							=dict(zip(a_      ,						range(len(a_			)			)			)			)

										snake_case:    List[Any]      							=os.path.join(self.tmpdirname      ,						VOCAB_FILES_NAMES['vocab_file']			)
										with open(self.vocab_file      ,						'w'      ,						encoding='utf-8'			) as fp:
													fp.write(json.dumps(a_			) + '\n'			)


							def    UpperCamelCase     (				self   :						Optional[Any]      ,						**a_   :						List[Any]			)			->					str:
										return MgpstrTokenizer.from_pretrained(self.tmpdirname      ,						**a_			)


							def    UpperCamelCase     (				self   :						int      ,						a_   :						Dict			)			->					int:
										snake_case:    Any      							='tester'
										snake_case:    List[str]      							='tester'
										return input_text, output_text


							@unittest.skip('MGP-STR always lower cases letters.'			)
							def    UpperCamelCase     (				self   :						Any			)			->					Dict:
										pass


							def    UpperCamelCase     (				self   :						Optional[int]			)			->					int:
										snake_case:    int      							=self.get_tokenizers(do_lower_case=a_			)
										for tokenizer in tokenizers:
													with self.subTest(F'''{tokenizer.__class__.__name__}'''			):
																snake_case:    Optional[Any]      							='[SPECIAL_TOKEN]'

																tokenizer.add_special_tokens({'cls_token': special_token}			)
																snake_case:    List[str]      							=tokenizer.encode([special_token]      ,						add_special_tokens=a_			)
																self.assertEqual(len(a_			)      ,						1			)

																snake_case:    Union[str, Any]      							=tokenizer.decode(a_      ,						skip_special_tokens=a_			)
																self.assertTrue(special_token not in decoded			)


							def    UpperCamelCase     (				self   :						int			)			->					str:
										snake_case:    int      							=self.get_tokenizers()
										for tokenizer in tokenizers:
													with self.subTest(F'''{tokenizer.__class__.__name__}'''			):
																snake_case							,  snake_case:    Dict      							=self.get_input_output_texts(a_			)

																snake_case:    Dict      							=tokenizer.tokenize(a_			)
																snake_case:    str      							=tokenizer.convert_tokens_to_ids(a_			)
																snake_case:    List[Any]      							=tokenizer.encode(a_      ,						add_special_tokens=a_			)
																self.assertListEqual(a_      ,						a_			)

																snake_case:    str      							=tokenizer.convert_ids_to_tokens(a_			)
																self.assertNotEqual(len(a_			)      ,						0			)
																snake_case:    Tuple      							=tokenizer.decode(a_			)
																self.assertIsInstance(a_      ,						a_			)

																self.assertEqual(text_a.replace(' '      ,						''			)      ,						a_			)


							@unittest.skip('MGP-STR tokenizer only handles one sequence.'			)
							def    UpperCamelCase     (				self   :						Dict			)			->					str:
										pass




							@unittest.skip('inputs cannot be pretokenized in MgpstrTokenizer'			)
							def    UpperCamelCase     (				self   :						Optional[Any]			)			->					Optional[int]:
										pass




