




from __future__ import annotations



class 			a     :

     '''simple docstring'''





     def __init__(	self   :			Optional[int]					,    __snake_case   :			int				):
         UpperCAmelCase_							 =     value
         UpperCAmelCase_							 =     None
         UpperCAmelCase_							 =     None



class 			a     :

     '''simple docstring'''





     lowerCAmelCase				:       int
     def __init__(	self   :			int				):
         UpperCAmelCase_							 =     0
     def   lowerCamelCase_   (	self   :			Optional[int]					,    __snake_case   :			Node | None					,    __snake_case   :			int				):
         if node is None:
             return

         if path_sum == self.target:
             self.paths += 1

         if node.left:
             self.depth_first_search(node.left					,    path_sum + node.left.value				)
         if node.right:
             self.depth_first_search(node.right					,    path_sum + node.right.value				)




     def   lowerCamelCase_   (	self   :			Any					,    __snake_case   :			Node | None					,    __snake_case   :			int | None = None				):
         if node is None:
             return 0
         if target is not None:
             UpperCAmelCase_							 =     target

         self.depth_first_search(__snake_case					,    node.value				)
         self.path_sum(node.left				)
         self.path_sum(node.right				)

         return self.paths


if __name__ == "__main__":
 import doctest

 doctest.testmod()











def 					SCREAMING_SNAKE_CASE	(       __UpperCamelCase			:						str      )  ->							int:
    UpperCAmelCase_							 =     5381
    for x in s:
        UpperCAmelCase_							 =     ((hash_value << 5) + hash_value) + ord(__UpperCamelCase      )
    return hash_value & 0xffff_ffff





