

class       SCREAMING_SNAKE_CASE__					:





    def __init__(      self						,   a						,   a=None						,   a=None):
         lowercase__    :   List[str]      =       data
         lowercase__    :   List[str]      =       previous
         lowercase__    :   List[Any]      =       next_node





    def __str__(      self):
         return f"""{self.data}"""





    def       snake_case_				(      self):
         return self.data





    def       snake_case_				(      self):
         return self.next





    def       snake_case_				(      self):
         return self.previous



class       SCREAMING_SNAKE_CASE__					:





    def __init__(      self						,   a):
         lowercase__    :   List[str]      =       head





    def __iter__(      self):
         return self





    def       snake_case_				(      self):
         if not self.current:
              raise StopIteration
         else:
              lowercase__    :   Any      =       self.current.get_data()
              lowercase__    :   Any      =       self.current.get_next()
              return value



class       SCREAMING_SNAKE_CASE__					:





    def __init__(      self):
         lowercase__    :   Dict      =       None  # First node in list
         lowercase__    :   Tuple      =       None  # Last node in list





    def __str__(      self):
         lowercase__    :   Optional[Any]      =       self.head
         lowercase__    :   int      =       []
         while current is not None:
              nodes.append(current.get_data())
              lowercase__    :   Any      =       current.get_next()
         return " ".join(str(a) for node in nodes)





    def __contains__(      self						,   a):
         lowercase__    :   List[Any]      =       self.head
         while current:
              if current.get_data() == value:
                   return True
              lowercase__    :   Dict      =       current.get_next()
         return False





    def __iter__(      self):
         return LinkedListIterator(self.head)





    def       snake_case_				(      self):
         if self.head:
              return self.head.get_data()
         return None





    def       snake_case_				(      self):
         if self.tail:
              return self.tail.get_data()
         return None





    def       snake_case_				(      self						,   a):
         if self.head is None:
              lowercase__    :   Any      =       node
              lowercase__    :   int      =       node
         else:
              self.insert_before_node(self.head						,   a)





    def       snake_case_				(      self						,   a):
         if self.head is None:
              self.set_head(a)
         else:
              self.insert_after_node(self.tail						,   a)





    def       snake_case_				(      self						,   a):
         lowercase__    :   str      =       Node(a)
         if self.head is None:
              self.set_head(a)
         else:
              self.set_tail(a)





    def       snake_case_				(      self						,   a						,   a):
         lowercase__    :   int      =       node
         lowercase__    :   Union[str, Any]      =       node.previous

         if node.get_previous() is None:
              lowercase__    :   Optional[int]      =       node_to_insert
         else:
              lowercase__    :   Dict      =       node_to_insert

         lowercase__    :   Union[str, Any]      =       node_to_insert





    def       snake_case_				(      self						,   a						,   a):
         lowercase__    :   Any      =       node
         lowercase__    :   int      =       node.next

         if node.get_next() is None:
              lowercase__    :   Union[str, Any]      =       node_to_insert
         else:
              lowercase__    :   List[str]      =       node_to_insert

         lowercase__    :   str      =       node_to_insert





    def       snake_case_				(      self						,   a						,   a):
         lowercase__    :   Optional[int]      =       1
         lowercase__    :   Any      =       Node(a)
         lowercase__    :   Optional[Any]      =       self.head
         while node:
              if current_position == position:
                   self.insert_before_node(a						,   a)
                   return
              current_position += 1
              lowercase__    :   Optional[int]      =       node.next
         self.insert_after_node(self.tail						,   a)





    def       snake_case_				(      self						,   a):
         lowercase__    :   Tuple      =       self.head
         while node:
              if node.get_data() == item:
                   return node
              lowercase__    :   Tuple      =       node.get_next()
         raise Exception('Node not found')





    def       snake_case_				(      self						,   a):
         if (node := self.get_node(a)) is not None:
              if node == self.head:
                   lowercase__    :   Optional[int]      =       self.head.get_next()

              if node == self.tail:
                   lowercase__    :   Dict      =       self.tail.get_previous()

              self.remove_node_pointers(a)





    @staticmethod
    def       snake_case_				(      a):
         if node.get_next():
              lowercase__    :   Optional[Any]      =       node.previous

         if node.get_previous():
              lowercase__    :   Tuple      =       node.next

         lowercase__    :   Tuple      =       None
         lowercase__    :   List[str]      =       None





    def       snake_case_				(      self):
         return self.head is None



def 	snake_case__			(    ):



     '''simple docstring'''







if __name__ == "__main__":
       import doctest

       doctest.testmod()




def 	snake_case__			(    SCREAMING_SNAKE_CASE_		:    str = "The quick brown fox jumps over the lazy dog"	,     ):



     '''simple docstring'''





     lowercase__    :   str      =       set()

     # Replace all the whitespace in our sentence
     lowercase__    :   Tuple      =       input_str.replace(' '	,     ''			)
     for alpha in input_str:
          if "a" <= alpha.lower() <= "z":
               frequency.add(alpha.lower()			)
     return len(SCREAMING_SNAKE_CASE_			) == 26

def 	snake_case__			(    SCREAMING_SNAKE_CASE_		:    str = "The quick brown fox jumps over the lazy dog"	,     ):



     '''simple docstring'''





     lowercase__    :   Dict      =       [False] * 26
     for char in input_str:
          if char.islower():
               lowercase__    :   List[Any]      =       True
          elif char.isupper():
               lowercase__    :   Optional[Any]      =       True
     return all(SCREAMING_SNAKE_CASE_			)

def 	snake_case__			(    SCREAMING_SNAKE_CASE_		:    str = "The quick brown fox jumps over the lazy dog"	,     ):



     '''simple docstring'''





     return len({char for char in input_str.lower() if char.isalpha()}			) == 26

def 	snake_case__			(    ):



     '''simple docstring'''





     from timeit import timeit

     lowercase__    :   Union[str, Any]      =       'from __main__ import is_pangram, is_pangram_faster, is_pangram_fastest'
     print(timeit('is_pangram()'	,     setup=SCREAMING_SNAKE_CASE_			)			)
     print(timeit('is_pangram_faster()'	,     setup=SCREAMING_SNAKE_CASE_			)			)
     print(timeit('is_pangram_fastest()'	,     setup=SCREAMING_SNAKE_CASE_			)			)
     # 5.348480500048026, 2.6477354579837993, 1.8470395830227062
     # 5.036091582966037, 2.644472333951853,  1.8869528750656173


if __name__ == "__main__":
       import doctest

       doctest.testmod()
       benchmark()

