{ A(0) }

Cost_of_Edge + Cost_of_previous_Node

{ B(2), D(3), C(4) }

{ D(3), C(4), E(4) }

{ E(3), C(4) }

{ C(4), F(10) }

Cost_of_Edge + Cost_of_previous_Node

Cost_of_Edge + Cost_of_previous_Node + Estimated_Cost_to_reach_Target_from(Node)