


import numpy as np
class 				SCREAMING_SNAKE_CASE__						:
      def __init__( self       : Optional[int]  )	->    Optional[int]:
             a_      :	Tuple							=						(0, 0)
             a_      :	str							=						None
             a_      :	List[Any]							=						0
             a_      :	int							=						0
             a_      :	List[Any]							=						0
      def __eq__( self       : Any  ,							SCREAMING_SNAKE_CASE__       : Dict  )	->    str:
             return self.position == cell.position

      def  SCREAMING_SNAKE_CASE							( self       : List[Any]  )	->    Optional[Any]:
             print(self.position  )
class 				SCREAMING_SNAKE_CASE__						:
      def __init__( self       : Any  ,							SCREAMING_SNAKE_CASE__       : Any=(5, 5)  )	->    Optional[Any]:
             a_      :	Optional[int]							=						np.zeros(SCREAMING_SNAKE_CASE__  )
             a_      :	Tuple							=						world_size[0]
             a_      :	Optional[Any]							=						world_size[1]
      def  SCREAMING_SNAKE_CASE							( self       : Any  )	->    Any:
             print(self.w  )

      def  SCREAMING_SNAKE_CASE							( self       : List[Any]  ,							SCREAMING_SNAKE_CASE__       : Any  )	->    Optional[Any]:
             a_      :	Dict							=						[
                 (-1, -1),
                 (-1, 0),
                 (-1, 1),
                 (0, -1),
                 (0, 1),
                 (1, -1),
                 (1, 0),
                 (1, 1),
             ]
             a_      :	Any							=						cell.position[0]
             a_      :	List[Any]							=						cell.position[1]
             a_      :	Dict							=						[]
             for n in neughbour_cord:
                    a_      :	Any							=						current_x + n[0]
                    a_      :	str							=						current_y + n[1]
                    if 0 <= x < self.world_x_limit and 0 <= y < self.world_y_limit:
                           a_      :	str							=						Cell()
                           a_      :	Tuple							=						(x, y)
                           a_      :	List[Any]							=						cell
                           neighbours.append(SCREAMING_SNAKE_CASE__  )
             return neighbours







def  SCREAMING_SNAKE_CASE_		(    __A				:    List[Any]						,					__A				:    List[str]						,					__A				:    Optional[Any]       )			->	str:

       """simple docstring"""

       a_      :	Optional[Any]							=						[]
       a_      :	Optional[Any]							=						[]
       _open.append(lowerCamelCase__       )

       while _open:
              a_      :	Optional[Any]							=						np.argmin([n.f for n in _open]       )
              a_      :	str							=						_open[min_f]
              _closed.append(_open.pop(lowerCamelCase__       )       )
              if current == goal:
                     break
              for n in world.get_neigbours(lowerCamelCase__       ):
                     for c in _closed:
                            if c == n:
                                   continue
                     a_      :	Optional[Any]							=						current.g + 1
                     a_							,	a_      :	Any							=						n.position
                     a_							,	a_      :	Dict							=						goal.position
                     a_      :	Optional[int]							=						(ya - ya) ** 2 + (xa - xa) ** 2
                     a_      :	Dict							=						n.h + n.g

                     for c in _open:
                            if c == n and c.f < n.f:
                                   continue
                     _open.append(lowerCamelCase__       )
       a_      :	List[str]							=						[]
       while current.parent is not None:
              path.append(current.position       )
              a_      :	str							=						current.parent
       path.append(current.position       )
       return path[::-1]


if __name__ == "__main__":
   UpperCAmelCase_   :				Optional[Any]						      =		Gridworld()
   # Start position and goal
   UpperCAmelCase_   :				Union[str, Any]						      =		Cell()
   UpperCAmelCase_   :				int						      =		(0, 0)
   UpperCAmelCase_   :				Tuple						      =		Cell()
   UpperCAmelCase_   :				List[str]						      =		(4, 4)
   print(F'path from {start.position} to {goal.position}')
   UpperCAmelCase_   :				List[Any]						      =		astar(world, start, goal)
   #   Just for visual reasons.
   for i in s:
      UpperCAmelCase_   :				Union[str, Any]						      =		1
   print(world.w)






def  SCREAMING_SNAKE_CASE_		(    __A				:    list       )			->	list:

       """simple docstring"""

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

       a_      :	Optional[Any]							=						[]

       def generate(__A				:    int						,					__A				:    list       ):
              a_      :	str							=						[0] * n
              res.append(tuple(__A       )       )

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

       generate(len(__A       )						,					__A       )
       return res


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


