def       A__  (			lowercase:     Optional[Any]					)				->		List[Any]:

       if len(lowercase					) <= 1:
              return [tuple(lowercase					)]

       A						:     str         =[]

       def generate(lowercase:     Optional[int],		lowercase:     List[Any]					):
              A						:     str         =[0] * n
              res.append(tuple(lowercase					)					)

              A						:     Union[str, Any]         =0
              while i < n:
                     if c[i] < i:
                            if i % 2 == 0:
                                   A  ,  A						:     Optional[Any]         =arr[i], arr[0]
                            else:
                                   A  ,  A						:     Any         =arr[i], arr[c[i]]
                            res.append(tuple(lowercase					)					)
                            c[i] += 1
                            A						:     List[Any]         =0
                     else:
                            A						:     int         =0
                            i += 1

       generate(len(lowercase					),		lowercase					)
       return res


if __name__ == "__main__":
    _lowercase							:      str      							=input('''Enter numbers separated by a comma:\n''').strip()
    _lowercase							:      Any      							=[int(item) for item in user_input.split(''',''')]
    print(heaps(arr))







import inspect
import warnings
from typing import Any, Dict, Optional, Union

from packaging import version



def A__  (			*lowercase:     Tuple,		lowercase:     Optional[Union[Dict, Any]] = None,		lowercase:     Dict=True,		lowercase:     Any=2					)				->		List[Any]:
       from .. import __version__

       A						:     Optional[Any]         =take_from
       A						:     Union[str, Any]         =()
       if not isinstance(args[0],		lowercase					):
              A						:     List[str]         =(args,)

       for attribute, version_name, message in args:
              if version.parse(version.parse(lowercase					).base_version					) >= version.parse(lowercase					):
                     raise ValueError(
                         F'The deprecation tuple {(attribute, version_name, message)} should be removed since diffusers\''
                         F' version {__version__} is >= {version_name}'					)

              A						:     Tuple         =None
              if isinstance(lowercase,		lowercase					) and attribute in deprecated_kwargs:
                     values += (deprecated_kwargs.pop(lowercase					),)
                     A						:     Union[str, Any]         =F'The `{attribute}` argument is deprecated and will be removed in version {version_name}.'
              elif hasattr(lowercase,		lowercase					):
                     values += (getattr(lowercase,		lowercase					),)
                     A						:     Optional[Any]         =F'The `{attribute}` attribute is deprecated and will be removed in version {version_name}.'
              elif deprecated_kwargs is None:
                     A						:     List[Any]         =F'`{attribute}` is deprecated and will be removed in version {version_name}.'

              if warning is not None:
                     A						:     List[Any]         =warning + ' ' if standard_warn else ''
                     warnings.warn(warning + message,		lowercase,		stacklevel=lowercase					)

       if isinstance(lowercase,		lowercase					) and len(lowercase					) > 0:
              A						:     Any         =inspect.getouterframes(inspect.currentframe()					)[1]
              A						:     int         =call_frame.filename
              A						:     int         =call_frame.lineno
              A						:     Optional[int]         =call_frame.function
              A  ,  A						:     int         =next(iter(deprecated_kwargs.items()					)					)
              raise TypeError(F'{function} in {filename} line {line_number-1} got an unexpected keyword argument `{key}`'					)

       if len(lowercase					) == 0:
              return
       elif len(lowercase					) == 1:
              return values[0]
       return values






