
'''simple docstring'''



def       lowerCAmelCase_		( SCREAMING_SNAKE_CASE_			,					SCREAMING_SNAKE_CASE_  )   ->   List[str]:




   """simple docstring"""
   sequence.append(SCREAMING_SNAKE_CASE_  )

   _SCREAMING_SNAKE_CASE          = 0
   while sequence[index] != target:
      index += 1

   sequence.pop()

   if index == len(SCREAMING_SNAKE_CASE_  ):
      return None

   return index


if __name__ == "__main__":
     UpperCamelCase__					:						str											=     input("Enter numbers separated by comma:\n").strip()
     UpperCamelCase__					:						str											=     [int(item) for item in user_input.split(",")]

     UpperCamelCase__					:						Union[str, Any]											=     input("Enter a single number to be found in the list:\n")
     UpperCamelCase__					:						Union[str, Any]											=     int(target_input)
     UpperCamelCase__					:						Tuple											=     sentinel_linear_search(sequence, target)
     if result is not None:
          print(f"""{target} found at positions: {result}""")
     else:
          print("Not found")











'''simple docstring'''

from __future__ import annotations






def 		_snake_case		(					_SCREAMING_SNAKE_CASE     :						list[int]							,		_SCREAMING_SNAKE_CASE     :						int							)			->						list[int]:







	"""simple docstring"""
	lowerCAmelCase    =	{}
	for index, val in enumerate(_SCREAMING_SNAKE_CASE							):
		lowerCAmelCase    =	target - val
		if compl in chk_map:
			return [chk_map[compl], index]
		lowerCAmelCase    =	index
	return []


if __name__ == "__main__":
				import doctest

				doctest.testmod()
				print(F'''{two_sum([2, 7, 11, 15], 9) = }''')