






"""simple docstring"""



from collections import defaultdict

def 			_snake_case    (					lowerCamelCase__     :   Any  )    ->     int:
							lowerCamelCase_	:							Tuple									=1
							lowerCamelCase_	:							List[Any]									=True
							for v in tree[start]:
														if v not in visited:
																					ret += dfs(_UpperCAmelCase  )
							if ret % 2 == 0:
														cuts.append(_UpperCAmelCase  )
							return ret

def 			_snake_case    (					)    ->     Any:
							dfs(1  )


if __name__ == "__main__":
			A__	:    Any			 = 10, 9
			A__	:    Any			 = defaultdict(list)
			A__	:    dict[int, bool]			 = {}
			A__	:    list[int]			 = []
			A__	:    str			 = 0
			A__	:    List[Any]			 = [(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)











"""simple docstring"""



import torch

def 			_snake_case    (					)    ->     Union[str, Any]:
							if torch.cuda.is_available():
														lowerCamelCase_	:							int									=torch.cuda.device_count()
							else:
														lowerCamelCase_	:							List[str]									=0
							print(F"""Successfully ran on {num_gpus} GPUs"""  )


if __name__ == "__main__":
						main()



