


from __future__ import annotations

_lowerCAmelCase:						Union[str, Any]   				=       {
    'A': ['B', 'C', 'E'],
    'B': ['A', 'D', 'E'],
    'C': ['A', 'F', 'G'],
    'D': ['B'],
    'E': ['A', 'B', 'D'],
    'F': ['C'],
    'G': ['C'],
}




class       lowercase_					:





				def __init__(				self       ,  lowercase_       ,  lowercase_)  -> None:
											a__      =graph
											# mapping node to its parent in resulting breadth first tree
											a__      ={}
											a__      =source_vertex





				def 						__UpperCamelCase    (				self)  -> None:
											a__      ={self.source_vertex}
											a__      =None
											a__      =[self.source_vertex]  # first in first out queue

											while queue:
																		a__      =queue.pop(0)
																		for adjacent_vertex in self.graph[vertex]:
																									if adjacent_vertex not in visited:
																																visited.add(lowercase_)
																																a__      =vertex
																																queue.append(lowercase_)





				def 						__UpperCamelCase    (				self       ,  lowercase_)  -> str:
											if target_vertex == self.source_vertex:
																		return self.source_vertex

											a__      =self.parent.get(lowercase_)
											if target_vertex_parent is None:
																		a__      =(
																		    F"""No path from vertex: {self.source_vertex} to vertex: {target_vertex}"""
																		)
																		raise ValueError(lowercase_)

											return self.shortest_path(lowercase_) + F"""->{target_vertex}"""


if __name__ == "__main__":
	_lowerCAmelCase:						Tuple   				=       Graph(graph, 'G')
	g.breath_first_search()
	print(g.shortest_path('D'))
	print(g.shortest_path('G'))
	print(g.shortest_path('Foo'))





def   _lowercase(					__a				:						list[int]     ):
							a__      =len(__a     )
							for i in range(__a     ):
														for j in range(i + 1    ,     __a     ):
																					if numbers[j] < numbers[i]:
																												a__    ,     a__      =numbers[j], numbers[i]
							return numbers


if __name__ == "__main__":
	_lowerCAmelCase:						Tuple   				=       input('Enter numbers separated by a comma:\n').strip()
	_lowerCAmelCase:						int   				=       [int(item) for item in user_input.split(',')]
	print(exchange_sort(unsorted))

