t/input/duplicates.txt

   1 thrice
   2 twice
   3 thrice
   4 once
   5 twice
   6 most
   7 thrice
   8 most
   9 most
  10 most
  11 most
  12 most
  13 most
  14
  15 most
  16  indented
  17 different
  18   different
  19 most
  20 most