code: 
  
  
  
  
  
  
  """simple docstring"""
  from __future__ import annotations
  
  
  
  class 					UpperCamelCase__   :
  
  
  
  
  
  
  
      """simple docstring"""
  
  
  
  
  
  
  
      def __init__(		self   :  List[str]							,						UpperCamelCase_   :  int = 0   ):
  
  
  
  
  
             '''simple docstring'''
  
             __magic_name__										=						value
             __magic_name__										=						None
             __magic_name__										=						None
  
  
  def        A	(							__snake_case:   Node | None   ,    __snake_case:   Node | None     )						->		Node | None:
  
         """simple docstring"""
  
  
  
  
  
         if treea is None:
                return treea
         if treea is None:
                return treea
  
         __magic_name__										=						treea.value + treea.value
         __magic_name__										=						merge_two_binary_trees(treea.left   ,    treea.left     )
         __magic_name__										=						merge_two_binary_trees(treea.right   ,    treea.right     )
         return treea
  
  
  def        A	(							__snake_case:   Node | None     )						->		None:
  
         """simple docstring"""
  
  
  
  
  
         if root:
                print(root.value     )
                print_preorder(root.left     )
                print_preorder(root.right     )
  
  
  if __name__ == "__main__":
   snake_case   :   List[Any]    		=		Node(1)
   snake_case   :   Dict    		=		Node(2)
   snake_case   :   Tuple    		=		Node(3)
   snake_case   :   Optional[int]    		=		Node(4)
  
   snake_case   :   List[str]    		=		Node(2)
   snake_case   :   List[str]    		=		Node(4)
   snake_case   :   int    		=		Node(6)
   snake_case   :   List[str]    		=		Node(9)
   snake_case   :   Any    		=		Node(5)
  
   print("""Tree1 is: """)
   print_preorder(treea)
   print("""Tree2 is: """)
   print_preorder(treea)
   snake_case   :   Dict    		=		merge_two_binary_trees(treea, treea)
   print("""Merged Tree is: """)
   print_preorder(merged_tree)
style_context: 
  
  
  
  
  
  
  """simple docstring"""
  def        A	(							__snake_case:   Dict   ,    __snake_case:   Tuple     )						->		int:
  
         """simple docstring"""
  
  
  
  
  
         sequence.append(__snake_case     )
  
         __magic_name__										=						0
         while sequence[index] != target:
                index += 1
  
         sequence.pop()
  
         if index == len(__snake_case     ):
                return None
  
         return index
  
  
  if __name__ == "__main__":
   snake_case   :   Dict    		=		input("""Enter numbers separated by comma:\n""").strip()
   snake_case   :   List[str]    		=		[int(item) for item in user_input.split(""",""")]
  
   snake_case   :   Union[str, Any]    		=		input("""Enter a single number to be found in the list:\n""")
   snake_case   :   str    		=		int(target_input)
   snake_case   :   Any    		=		sentinel_linear_search(sequence, target)
   if result is not None:
    print(f"""{target} found at positions: {result}""")
   else:
    print("""Not found""")