" <------------------------- sam060.txt ---------------------------->
  p # 2 3 5 7
  L # e # 3 4 R I 12
  L # x # 3 4 R 'ABCDEFGHIJKL'
" <--- Take -------------------------------------------------------->
  2 3 Y x
  -2 Y p
" <--- Drop -------------------------------------------------------->
  2 3 U x
  -2 U p
)off