IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 club
  a stone
(9, 4, D:1)
  a +0 dagger
(11, -3, D:1)
  a +0 club
(11, 22, D:1)
  a +0 leather armour
(15, 18, D:1)
  a +0 dagger
(35, 8, D:1)
  a +0 club
(46, 16, D:1)
  a +0 hand axe
(48, 9, D:1)
  a +0 dagger
(51, 45, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  a dart slug corpse
(0, 2, D:2)
  a rat corpse
(3, 0, D:2)
  a +0 whip
(7, 14, D:2)
  a rat corpse
(12, 12, D:2)
  a scroll of identify
(12, 16, D:2)
  a scroll of identify
(22, 7, D:2)
  a +0 ring mail
(24, 4, D:2)
  a rat corpse
(26, 8, D:2)
  a +0 ring mail
(27, 14, D:2)
  a potion of brilliance
(27, 15, D:2)
  a scroll of acquirement
(28, 5, D:2)
  10 gold pieces
(28, 16, D:2)
  6 boomerangs
(29, 16, D:2)
  2 potions of curing