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

solution cost   : 524.611
number of trips : 5

trip 1, 9 customers, sequence : 18 13 41 40 19 42 17 4 47 
   weight    : 157
   volume    : 9
   trip cost : 109.056

trip 2, 10 customers, sequence : 11 2 29 21 16 50 34 30 9 38 
   weight    : 159
   volume    : 10
   trip cost : 99.3331

trip 3, 9 customers, sequence : 6 14 25 24 43 7 23 48 27 
   weight    : 152
   volume    : 9
   trip cost : 98.4517

trip 4, 11 customers, sequence : 8 26 31 28 3 36 35 20 22 1 32 
   weight    : 149
   volume    : 11
   trip cost : 118.519

trip 5, 11 customers, sequence : 12 37 44 15 45 33 39 10 49 5 46 
   weight    : 160
   volume    : 11
   trip cost : 99.2512