IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 ring mail
(6, 8, D:1)
  a +0 robe
(7, 35, D:1)
  a stone
(23, 45, D:1)
  7 stones
(24, 27, D:1)
  a +0 mace
  4 stones
(40, 5, D:1)
  a +0 whip
  5 stones

Level 2 of the Dungeon
(0, 0, D:2)
  2 poisoned darts
(1, 7, D:2)
  a +0 club
(2, -15, D:2)
  a +0 sling
(6, -10, D:2)
  3 stones
(8, 5, D:2)
  a +0 scale mail
(35, -22, D:2)
  a frilled lizard skeleton
(37, 0, D:2)
  a +0 leather armour

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 short sword
  an orc corpse
(4, -1, D:3)
  a hobgoblin corpse
(15, 7, D:3)
  a +0 club
  an orc corpse
(16, 7, D:3)
  a potion of curing
(21, 4, D:3)
  a scroll of identify
(31, -1, D:3)
  a +0 robe
(39, 3, D:3)
  a giant cockroach corpse
(40, -3, D:3)
  4 boomerangs
(40, 4, D:3)
  a rat corpse
  a river rat corpse
  a river rat corpse