Subroutine deflate
    Package (lexical)
      $$eref            51
      $@$$eref          56
      $@$@$$eref        60
      $@$@$@$$eref      65
      $@$@$@$@$$eref    70
      $eref             i50, 51
      $i                i55, 56, 59, 59, 55, 70, 71
      $inner            i60, 62, 63, 64, 55, 69
      $j                i59, 60, 65, 66, 67, 59
      $key              i49
      $outer            i56, 62, 63, 64, 55, 69
      $size             i51, 66, 59, 55, 71
      @$$eref           51, 56
      @$@$$eref         56, 60
      @$@$@$$eref       60, 65
      @$@$@$@$$eref     65, 70
      @$@$@$@$@$$eref   70
    Package main
      @_                49, 50