




"""simple docstring"""






from __future__ import annotations

from typing import Any







def      _snake_case			(				lowercase__		):
				create_state_space_tree(_A							,    []							,    0		)







def      _snake_case			(				lowercase__							,    lowercase__							,    lowercase__		):




				if index == len(_A		):
								print(_A		)
								return

				create_state_space_tree(_A							,    _A							,    index + 1		)
				current_subsequence.append(sequence[index]		)
				create_state_space_tree(_A							,    _A							,    index + 1		)
				current_subsequence.pop()


if __name__ == "__main__":
			lowercase__     						=						[3, 1, 2, 4]
			generate_all_subsequences(seq)

			seq.clear()
			seq.extend(["""A""", """B""", """C"""])
			generate_all_subsequences(seq)



from collections import defaultdict

def       lowercase_		(		_A			:    int						):

      """simple docstring"""




      lowerCamelCase__		:				Union[str, Any]    =  1
      lowerCamelCase__		:				Dict    =  True
      for v in tree[start]:
            if v not in visited:
                  ret += dfs(_A						)
      if ret % 2 == 0:
            cuts.append(_A						)
      return ret

def       lowercase_		(		):

      """simple docstring"""




      dfs(1						)


if __name__ == "__main__":
    A,  A      :    Tuple		=					10, 9
    A      :    int		=					defaultdict(list)
    A      :    dict[int, bool]		=					{}
    A      :    list[int]		=					[]
    A      :    List[str]		=					0
    A      :    Tuple		=					[(2, 1), (3, 1), (4, 3), (5, 2), (6, 1), (7, 2), (8, 6), (9, 8), (10, 8)]
    for u, v in edges:
        tree[u].append(v)
        tree[v].append(u)
    even_tree()
    print(len(cuts) - 1)


