THE PROBLEM HAVE 11 NODES AND WAS RANDOMLY GENERATED

PRIZE ASSOCIATED TO EACH NODES pi -> [1,100]
   0   39    1   62   77   25   21   54   31   20   53 

PENALTY ASSOCIATED TO EACH NODES gama_i -> [1,750]
 1000000  548  475    6  633  489  545  632    2    8  282 

TRAVEL COST BETWEEN THE NODES cij -> [50,1000]
    0    66   820   889   739   422   261   691   533   584   815 
   66     0   505    56   397   200   446    97   995   228   723 
  820   505     0   987    81   426   584   217   213   745   214 
  889    56   987     0   411   253   258   621   672   634   830 
  739   397    81   411     0   710   282   980   643   621   797 
  422   200   426   253   710     0   299   174   557   688   367 
  261   446   584   258   282   299     0   797   768   660   696 
  691    97   217   621   980   174   797     0   478   995   368 
  533   995   213   672   643   557   768   478     0   959   482 
  584   228   745   634   621   688   660   995   959     0   660 
  815   723   214   830   797   367   696   368   482   660     0