




"""simple docstring"""
from collections import defaultdict





def 						UpperCAmelCase				(			A__:    int     )  ->     int:
			__lowerCamelCase					:	int	       =				1
			__lowerCamelCase					:	Optional[Any]	       =				True
			for v in tree[start]:
						if v not in visited:
									ret += dfs(A__     )
			if ret % 2 == 0:
						cuts.append(A__     )
			return ret





def 						UpperCAmelCase				(			)  ->     Tuple:
			dfs(1     )


if __name__ == "__main__":
					a_						,							a_				:    Dict										=     10, 9
					a_				:    Optional[int]										=     defaultdict(list)
					a_				:    dict[int, bool]										=     {}
					a_				:    list[int]										=     []
					a_				:    int										=     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 random
from typing import Any





def 						UpperCAmelCase				(			A__:    list     )  ->     list[Any]:
			for _ in range(len(A__     )     ):
						__lowerCamelCase					:	List[Any]	       =				random.randint(0							,				len(A__     ) - 1     )
						__lowerCamelCase					:	Optional[Any]	       =				random.randint(0							,				len(A__     ) - 1     )
						__lowerCamelCase       ,      __lowerCamelCase					:	Any	       =				data[b], data[a]
			return data


if __name__ == "__main__":
					a_				:    Any										=     [0, 1, 2, 3, 4, 5, 6, 7]
					a_				:    int										=     ['''python''', '''says''', '''hello''', '''!''']
					print('''Fisher-Yates Shuffle:''')
					print('''List''', integers, strings)
					print('''FY Shuffle''', fisher_yates_shuffle(integers), fisher_yates_shuffle(strings))



