

def     _UpperCAmelCase				(     _SCREAMING_SNAKE_CASE    :						str       ,      _SCREAMING_SNAKE_CASE    :						List[Any]				):





    """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__     :					int								=			input("Enter numbers separated by comma:\n").strip()
       UpperCamelCase__     :					List[Any]								=			[int(item) for item in user_input.split(",")]

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





def     _UpperCAmelCase				(     _SCREAMING_SNAKE_CASE    :						str				):





    """simple docstring"""


    return "".join(chr(ord(_SCREAMING_SNAKE_CASE				) + 32				) if 'A' <= char <= 'Z' else char for char in word				)


if __name__ == "__main__":
       from doctest import testmod

       testmod()


