----------------  SOLUTION  -------------------

solution cost   : 835.262
number of trips : 10

trip 1, 9 customers, sequence : 3 44 32 50 18 55 25 31 72 
   weight    : 138
   volume    : 9
   trip cost : 120.164

trip 2, 5 customers, sequence : 67 46 34 4 75 
   weight    : 126
   volume    : 5
   trip cost : 29.0775

trip 3, 6 customers, sequence : 58 10 38 65 66 53 
   weight    : 139
   volume    : 6
   trip cost : 83.0844

trip 4, 6 customers, sequence : 7 11 59 14 35 8 
   weight    : 133
   volume    : 6
   trip cost : 86.3278

trip 5, 10 customers, sequence : 48 47 36 69 71 60 70 20 37 27 
   weight    : 139
   volume    : 10
   trip cost : 107.066

trip 6, 6 customers, sequence : 17 40 9 39 12 26 
   weight    : 132
   volume    : 6
   trip cost : 52.9311

trip 7, 9 customers, sequence : 45 29 5 15 57 13 54 19 52 
   weight    : 139
   volume    : 9
   trip cost : 89.5323

trip 8, 8 customers, sequence : 6 33 63 23 56 24 49 16 
   weight    : 140
   volume    : 8
   trip cost : 92.69

trip 9, 9 customers, sequence : 51 73 1 43 41 42 64 22 62 
   weight    : 138
   volume    : 9
   trip cost : 100.011

trip 10, 7 customers, sequence : 68 2 28 61 21 74 30 
   weight    : 140
   volume    : 7
   trip cost : 74.3784