Set: name of the set of instances


	         |      |  Required Arcs | Non-Required Arcs | Customers
Set	   Nodes | Arcs |  Min	   Max   | Min	Max          | Min Max
Random50    50   | 300  |  105     292   | 7       193       | 10  100
Random75    75   | 450  |  143     438   | 10      305       | 15  150
Albaida     116  | 174  |  83      99    | 75      91        | 19  34
Madrigueras 196  | 316  |  152     181   | 135     164       | 23  48