IndexError

Level 1 of the Dungeon
(11, -5, D:1)
  a +0 whip
(14, -46, D:1)
  6 stones
(16, -48, D:1)
  6 stones
  a +0 dagger
(17, -3, D:1)
  2 stones
(41, -44, D:1)
  6 stones
(43, -6, D:1)
  3 stones
(43, 2, D:1)
  a +0 dagger

Level 2 of the Dungeon
(2, 39, D:2)
  4 stones
(4, 29, D:2)
  a +0 club
  a +0 sling
(6, 19, D:2)
  a +0 mace
(9, -4, D:2)
  6 stones
(16, 13, D:2)
  a +0 club
(24, -7, D:2)
  3 stones
(25, 24, D:2)
  a +0 whip
(41, 26, D:2)
  a +0 spear
(45, 25, D:2)
  a +0 robe
(47, 4, D:2)
  a +0 dagger

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 dagger
  a +0 robe
(14, 20, D:3)
  a +0 dagger
(19, -10, D:3)
  4 stones
(19, 26, D:3)
  3 stones
(21, 6, D:3)
  a +2 whip of freezing
  a +0 chain mail
(31, 7, D:3)
  a +0 ring mail
(33, -5, D:3)
  4 boomerangs
(35, -3, D:3)
  a +0 club
(38, 26, D:3)
  a worm corpse
  a worm corpse
(38, 31, D:3)
  5 stones
(39, 26, D:3)
  a worm corpse
(43, 4, D:3)
  a +0 dagger
(51, 28, D:3)
  a worm corpse