IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 dagger
(10, -22, D:1)
  5 stones
(14, -8, D:1)
  a +0 robe
(21, 17, D:1)
  a +0 dagger
(23, 5, D:1)
  a +0 leather armour
(30, -15, D:1)
  a +0 club
  5 stones
(38, -23, D:1)
  a +0 club
(38, -17, D:1)
  a +0 club
(41, 4, D:1)
  a +0 robe
(55, -6, D:1)
  a +0 ring mail
(59, 3, D:1)
  a +0 dagger
(60, 2, D:1)
  a +0 short sword
(61, 0, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 robe
(8, -8, D:2)
  a +0 leather armour
(14, -4, D:2)
  a +0 leather armour
(47, 7, D:2)
  a +0 sling
  a +0 club
(47, 10, D:2)
  a +0 dagger
(48, -19, D:2)
  a +0 leather armour
(53, -14, D:2)
  8 stones
(63, -33, D:2)
  a +0 sling
(64, -12, D:2)
  a +0 whip

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 long sword
(5, 13, D:3)
  a +0 war axe
(9, 8, D:3)
  a +0 ring mail
(24, 19, D:3)
  8 stones
  a +0 club
(29, 8, D:3)
  a +0 hand axe
(30, 17, D:3)
  6 stones
(33, 6, D:3)
  a +0 club
(35, 4, D:3)
  a +0 short sword
(36, 1, D:3)
  a +0 buckler
(41, 19, D:3)
  a +0 flail
(42, 19, D:3)
  a +0 spear
  a +0 halberd
(45, -2, D:3)
  a +0 short sword
  4 stones
(51, -7, D:3)
  a +0 whip

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 dagger
  a +0 robe
(0, 1, D:4)
  a +0 short sword
  a +0 leather armour
(7, -3, D:4)
  a +0 trident
(10, -17, D:4)
  a howler monkey skeleton
(11, 2, D:4)
  a +0 mace
  a +0 ring mail
  an orc corpse
(12, 2, D:4)
  a +0 dagger
  a +0 robe
(15, -21, D:4)
  a potion of curing
(16, -39, D:4)
  a +0 dagger
(22, -15, D:4)
  a +0 war axe
(22, 6, D:4)
  a +0 rapier
(28, -15, D:4)
  a scroll of fear
(31, 6, D:4)
  8 stones
(34, -34, D:4)
  a +0 mace
(42, 11, D:4)
  a +0 leather armour