data/advent16a.txt

   1 class: 1-3 or 5-7
   2 row: 6-11 or 33-44
   3 seat: 13-40 or 45-50
   4
   5 your ticket:
   6 7,1,14
   7
   8 nearby tickets:
   9 7,3,47
  10 40,4,50
  11 55,2,20
  12 38,6,12