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

solution cost   : 698.605
number of trips : 11

trip 1, 3 customers, sequence : 7 11 35 
   weight    : 62
   volume    : 3
   trip cost : 62.9813

trip 2, 3 customers, sequence : 17 16 33 
   weight    : 66
   volume    : 3
   trip cost : 48.8913

trip 3, 2 customers, sequence : 9 32 
   weight    : 57
   volume    : 2
   trip cost : 53.0156

trip 4, 3 customers, sequence : 8 19 14 
   weight    : 62
   volume    : 3
   trip cost : 60.23

trip 5, 4 customers, sequence : 28 22 1 23 
   weight    : 65
   volume    : 4
   trip cost : 87.7657

trip 6, 3 customers, sequence : 10 31 12 
   weight    : 67
   volume    : 3
   trip cost : 76.8546

trip 7, 3 customers, sequence : 21 5 29 
   weight    : 62
   volume    : 3
   trip cost : 65.4804

trip 8, 4 customers, sequence : 3 24 18 25 
   weight    : 65
   volume    : 4
   trip cost : 91.4972

trip 9, 3 customers, sequence : 6 2 30 
   weight    : 67
   volume    : 3
   trip cost : 39.0814

trip 10, 4 customers, sequence : 20 15 13 27 
   weight    : 59
   volume    : 4
   trip cost : 81.7664

trip 11, 3 customers, sequence : 4 34 26 
   weight    : 67
   volume    : 3
   trip cost : 31.0416