50
 0 40 40 0
 1 22 22 18 
 2 36 26 26 
 3 21 45 11 
 4 45 35 30 
 5 55 20 21 
 6 33 34 19 
 7 50 50 15 
 8 55 45 16 
 9 26 59 29 
 10 40 66 26 
 11 55 65 37 
 12 35 51 16 
 13 62 35 12 
 14 62 57 31 
 15 62 24 8 
 16 21 36 19 
 17 33 44 20 
 18 9 56 13 
 19 62 48 15 
 20 66 14 22 
 21 44 13 28 
 22 26 13 12 
 23 11 28 6 
 24 7 43 27 
 25 17 64 14 
 26 41 46 18 
 27 55 34 17 
 28 35 16 29 
 29 52 26 13 
 30 43 26 22 
 31 31 76 25 
 32 22 53 28 
 33 26 29 27 
 34 50 40 19 
 35 55 50 10 
 36 54 10 12 
 37 60 15 14 
 38 47 66 24 
 39 30 60 16 
 40 30 50 33 
 41 12 17 15 
 42 15 14 11 
 43 16 19 18 
 44 21 48 17 
 45 50 30 21 
 46 51 42 27 
 47 50 15 19 
 48 48 21 20 
 49 12 38 5 
 50 15 56 22 
//Vehicles characteristics: volume, fixed cost, variable cost, number available
//See E. D. Taillard, "A heuristic column generation method for the heterogeneous fleet vrp"
//RAIRO Rech. Opér. 33 (1) 1999, pp 1-14)
//see http://ina2.eivd.ch/collaborateurs/etd/articles.dir/vrphen.pdf
120 1000 1.0 4
160 1500 1.1 2
300 3500 1.4 1

160
8 300 0 10000 625.679906 + 7*1000 + 1500 = 
   7  26   7  35  19   8  46  34  10530637
   4  10  38  11  14  10794953
   8  33   1  43  42  41  23  49  16  10916479
   6  48  47  36  21  28  22  10931709
   7  27  13  15  20  37   5  29  10832981
   6  44  32  50  18  24   3  10862722
   5   6   2  30  45   4  10469680
   7  12  39  31  25   9  40  17  15917639