T=30;
N=20;
Cost   = [22, 39, 33, 21, 13, 68, 45, 23, 49, 56,
          31, 59, 12, 13, 33, 11, 36, 43, 55, 10];
Loads  = [20, 16, 15, 13, 47, 10, 53, 43, 55, 10,
          18, 50, 11, 22, 54, 30, 27, 23, 20, 56];
Demand = [27, 65, 14, 19, 39, 78, 47, 49, 92, 11,
          41, 33, 11, 68, 19, 74, 51, 14, 47, 8,
          33, 73, 75, 24, 20, 11, 2, 44, 33, 49];
Truck1 = 5;
Truck2 = 6;