


class  UpperCamelCase__ :






      def __init__(     self					:   Dict,		__lowerCamelCase					:   int   )  -> List[str]:
           UpperCamelCase__							:  Dict								=     data
           UpperCamelCase__							:  Optional[Any]								=     None
           UpperCamelCase__							:  List[str]								=     None






      def __str__(     self					:   List[Any]   )  -> Optional[Any]:
           return f'{self.data}'

class  UpperCamelCase__ :






      def __init__(     self					:   List[Any]   )  -> Optional[Any]:
           UpperCamelCase__							:  Optional[Any]								=     None
           UpperCamelCase__							:  str								=     None






      def __iter__(     self					:   str   )  -> List[str]:
           UpperCamelCase__							:  List[str]								=     self.head
           while node:
                yield node.data
                UpperCamelCase__							:  str								=     node.next






      def __str__(     self					:   Optional[int]   )  -> Dict:
           return "->".join([str(__lowerCamelCase   ) for item in self]   )






      def __len__(     self					:   Any   )  -> List[str]:
           return sum(1 for _ in self   )






      def 	__lowercase(     self					:   str,		__lowerCamelCase					:   int   )  -> int:
           self.insert_at_nth(0,		__lowerCamelCase   )






      def 	__lowercase(     self					:   str,		__lowerCamelCase					:   Optional[int]   )  -> int:
           self.insert_at_nth(len(self   ),		__lowerCamelCase   )






      def 	__lowercase(     self					:   Optional[Any],		__lowerCamelCase					:   int,		__lowerCamelCase					:   Any   )  -> List[Any]:
           UpperCamelCase__							:  List[str]								=     len(self   )

           if not 0 <= index <= length:
                raise IndexError('''list index out of range'''   )
           UpperCamelCase__							:  str								=     Node(__lowerCamelCase   )
           if self.head is None:
                UpperCamelCase__							:  Any								=     new_node
           elif index == 0:
                UpperCamelCase__							:  Any								=     new_node
                UpperCamelCase__							:  Any								=     self.head
                UpperCamelCase__							:  List[str]								=     new_node
           elif index == length:
                UpperCamelCase__							:  Dict								=     new_node
                UpperCamelCase__							:  Dict								=     self.tail
                UpperCamelCase__							:  List[Any]								=     new_node
           else:
                UpperCamelCase__							:  List[str]								=     self.head
                for _ in range(0,		__lowerCamelCase   ):
                     UpperCamelCase__							:  Union[str, Any]								=     temp.next
                UpperCamelCase__							:  Dict								=     new_node
                UpperCamelCase__							:  Any								=     temp.previous
                UpperCamelCase__							:  Optional[int]								=     temp
                UpperCamelCase__							:  List[Any]								=     new_node






      def 	__lowercase(     self					:   str   )  -> int:
           return self.delete_at_nth(0   )






      def 	__lowercase(     self					:   Any   )  -> str:
           return self.delete_at_nth(len(self   ) - 1   )






      def 	__lowercase(     self					:   List[Any],		__lowerCamelCase					:   int   )  -> Union[str, Any]:
           UpperCamelCase__							:  Tuple								=     len(self   )

           if not 0 <= index <= length - 1:
                raise IndexError('''list index out of range'''   )
           UpperCamelCase__							:  Tuple								=     self.head  # default first node
           if length == 1:
                UpperCamelCase__							:  Optional[int]								=     None
           elif index == 0:
                UpperCamelCase__							:  List[Any]								=     self.head.next
                UpperCamelCase__							:  List[str]								=     None
           elif index == length - 1:
                UpperCamelCase__							:  List[Any]								=     self.tail
                UpperCamelCase__							:  Optional[int]								=     self.tail.previous
                UpperCamelCase__							:  int								=     None
           else:
                UpperCamelCase__							:  Any								=     self.head
                for _ in range(0,		__lowerCamelCase   ):
                     UpperCamelCase__							:  Optional[Any]								=     temp.next
                UpperCamelCase__							:  Tuple								=     temp
                UpperCamelCase__							:  Tuple								=     temp.previous
                UpperCamelCase__							:  Any								=     temp.next
           return delete_node.data






      def 	__lowercase(     self					:   Optional[int],		__lowerCamelCase					:   Any   )  -> str:
           UpperCamelCase__							:  Tuple								=     self.head

           while current.data != data:  # Find the position to delete
                if current.next:
                     UpperCamelCase__							:  Dict								=     current.next
                else:  # We have reached the end an no value matches
                     raise ValueError('''No data matching given value'''   )

           if current == self.head:
                self.delete_head()

           elif current == self.tail:
                self.delete_tail()

           else:  # Before: 1 <--> 2(current) <--> 3
                UpperCamelCase__							:  Optional[Any]								=     current.next  # 1 --> 3
                UpperCamelCase__							:  Dict								=     current.previous  # 1 <--> 3
           return data






      def 	__lowercase(     self					:   Union[str, Any]   )  -> Tuple:
           return len(self   ) == 0







def 						_lowercase       (     )  ->   None:





     '''simple docstring'''





     UpperCamelCase__							:  Tuple								=     DoublyLinkedList()
     assert linked_list.is_empty() is True
     assert str(__lowerCamelCase			) == ""

     try:
          linked_list.delete_head()
          raise AssertionError  # This should not happen.
     except IndexError:
          assert True  # This should happen.

     try:
          linked_list.delete_tail()
          raise AssertionError  # This should not happen.
     except IndexError:
          assert True  # This should happen.

     for i in range(10			):
          assert len(__lowerCamelCase			) == i
          linked_list.insert_at_nth(__lowerCamelCase		,i + 1			)
     assert str(__lowerCamelCase			) == "->".join(str(__lowerCamelCase			) for i in range(1		,11			)			)

     linked_list.insert_at_head(0			)
     linked_list.insert_at_tail(11			)
     assert str(__lowerCamelCase			) == "->".join(str(__lowerCamelCase			) for i in range(0		,12			)			)

     assert linked_list.delete_head() == 0
     assert linked_list.delete_at_nth(9			) == 10
     assert linked_list.delete_tail() == 11
     assert len(__lowerCamelCase			) == 9
     assert str(__lowerCamelCase			) == "->".join(str(__lowerCamelCase			) for i in range(1		,10			)			)


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

   testmod()








import math







def 						_lowercase       (     __lowerCamelCase			:					int			)  ->   str:





     '''simple docstring'''





     if number == 0:
          UpperCamelCase__							:  List[str]								=     '''Zero'''
          return words
     else:
          UpperCamelCase__							:  str								=     math.logaa(__lowerCamelCase			)
          UpperCamelCase__							:  Tuple								=     digits + 1
          UpperCamelCase__							:  List[str]								=     {}
          UpperCamelCase__							:  Optional[int]								=     ''''''
          UpperCamelCase__							:  str								=     '''One'''
          UpperCamelCase__							:  int								=     '''Two'''
          UpperCamelCase__							:  str								=     '''Three'''
          UpperCamelCase__							:  Dict								=     '''Four'''
          UpperCamelCase__							:  List[str]								=     '''Five'''
          UpperCamelCase__							:  int								=     '''Six'''
          UpperCamelCase__							:  str								=     '''Seven'''
          UpperCamelCase__							:  List[str]								=     '''Eight'''
          UpperCamelCase__							:  Tuple								=     '''Nine'''

          UpperCamelCase__							:  int								=     {}
          UpperCamelCase__							:  Any								=     ''''''
          UpperCamelCase__							:  Union[str, Any]								=     '''Twenty'''
          UpperCamelCase__							:  Optional[int]								=     '''Thirty'''
          UpperCamelCase__							:  Optional[int]								=     '''Forty'''
          UpperCamelCase__							:  Any								=     '''Fifty'''
          UpperCamelCase__							:  Optional[Any]								=     '''Sixty'''
          UpperCamelCase__							:  Union[str, Any]								=     '''Seventy'''
          UpperCamelCase__							:  Tuple								=     '''Eighty'''
          UpperCamelCase__							:  Dict								=     '''Ninety'''

          UpperCamelCase__							:  Any								=     {}
          UpperCamelCase__							:  str								=     '''Ten'''
          UpperCamelCase__							:  List[Any]								=     '''Eleven'''
          UpperCamelCase__							:  List[str]								=     '''Twelve'''
          UpperCamelCase__							:  List[str]								=     '''Thirteen'''
          UpperCamelCase__							:  List[Any]								=     '''Fourteen'''
          UpperCamelCase__							:  Union[str, Any]								=     '''Fifteen'''
          UpperCamelCase__							:  str								=     '''Sixteen'''
          UpperCamelCase__							:  int								=     '''Seventeen'''
          UpperCamelCase__							:  Tuple								=     '''Eighteen'''
          UpperCamelCase__							:  int								=     '''Nineteen'''

          UpperCamelCase__							:  Union[str, Any]								=     {}
          UpperCamelCase__							:  Dict								=     '''Hundred,'''
          UpperCamelCase__							:  Union[str, Any]								=     '''Thousand,'''
          UpperCamelCase__							:  List[Any]								=     '''Lakh,'''
          UpperCamelCase__							:  str								=     '''Crore,'''

          UpperCamelCase__							:  int								=     number
          UpperCamelCase__							:  int								=     ''''''
          UpperCamelCase__							:  int								=     0
          UpperCamelCase__							:  int								=     int(__lowerCamelCase			)
          while counter < digits:
               UpperCamelCase__							:  str								=     temp_num % 10
               if counter % 2 == 0:
                    UpperCamelCase__							:  List[Any]								=     ''''''
                    if counter in placevalue and current != 0:
                         UpperCamelCase__							:  Optional[Any]								=     placevalue[counter]
                    if counter == 2:
                         UpperCamelCase__							:  Tuple								=     singles[current] + addition + words
                    elif counter == 0:
                         if ((temp_num % 100) // 10) == 1:
                              UpperCamelCase__							:  Optional[Any]								=     teens[current] + addition + words
                              UpperCamelCase__							:  int								=     temp_num // 10
                              counter += 1
                         else:
                              UpperCamelCase__							:  Optional[Any]								=     singles[current] + addition + words

                    else:
                         UpperCamelCase__							:  Tuple								=     doubles[current] + addition + words

               else:
                    if counter == 1:
                         if current == 1:
                              UpperCamelCase__							:  Optional[Any]								=     teens[number % 10] + words
                         else:
                              UpperCamelCase__							:  Union[str, Any]								=     ''''''
                              if counter in placevalue:
                                   UpperCamelCase__							:  Optional[int]								=     placevalue[counter]
                              UpperCamelCase__							:  Optional[Any]								=     doubles[current] + addition + words
                    else:
                         UpperCamelCase__							:  List[Any]								=     ''''''
                         if counter in placevalue:
                              if current == 0 and ((temp_num % 100) // 10) == 0:
                                   UpperCamelCase__							:  Dict								=     ''''''
                              else:
                                   UpperCamelCase__							:  List[Any]								=     placevalue[counter]
                         if ((temp_num % 100) // 10) == 1:
                              UpperCamelCase__							:  Optional[int]								=     teens[current] + addition + words
                              UpperCamelCase__							:  Dict								=     temp_num // 10
                              counter += 1
                         else:
                              UpperCamelCase__							:  Optional[int]								=     singles[current] + addition + words
               counter += 1
               UpperCamelCase__							:  List[str]								=     temp_num // 10
     return words


if __name__ == "__main__":
   import doctest

   doctest.testmod()




