IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 hand axe
(11, -1, D:1)
  6 stones
(13, 25, D:1)
  8 stones
(19, 30, D:1)
  a +0 dagger
(40, -5, D:1)
  a +0 spear
(40, 0, D:1)
  a +0 dagger
(41, 30, D:1)
  a +0 club
(47, 33, D:1)
  a +0 club
(52, 0, D:1)
  a +0 club
(62, 15, D:1)
  3 poisoned darts

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 rapier
(1, -19, D:2)
  5 stones
(19, -7, D:2)
  a +0 dagger
(25, -10, D:2)
  5 stones
  a +0 club
(25, 1, D:2)
  a +0 dagger
(30, -22, D:2)
  6 stones
(30, 17, D:2)
  a +0 whip
  3 stones
(38, -7, D:2)
  a +0 short sword
  a +0 club
(49, -15, D:2)
  a +0 short sword
(49, -14, D:2)
  a +0 short sword
(49, -12, D:2)
  a +0 dagger
(58, -10, D:2)
  5 stones

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 mace
(0, 1, D:3)
  a +1 hand axe of venom
(0, 2, D:3)
  a +0 club
  3 silver boomerangs
(3, 2, D:3)
  4 poisoned darts
(4, -1, D:3)
  a +0 dagger
(21, 34, D:3)
  a +0 short sword
(23, 41, D:3)
  a +0 spear
(26, 13, D:3)
  a +0 scythe
(28, 40, D:3)
  5 stones
(33, 21, D:3)
  a +0 dagger
(41, 43, D:3)
  17 gold pieces
(43, 41, D:3)
  15 gold pieces
(47, 41, D:3)
  a ring of magical power
(49, 29, D:3)
  a +3 spear
(49, 43, D:3)
  5 gold pieces

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 dagger
(5, 11, D:4)
  an adder corpse (skeletalised by now)
(6, 14, D:4)
  a +0 dagger
  4 stones
  a ball python corpse (skeletalised by now)
  a kobold corpse (skeletalised by now)
(7, 33, D:4)
  a +3 dagger
(10, -13, D:4)
  a +0 club
  4 stones
  a kobold corpse (skeletalised by now)
(18, 39, D:4)
  4 stones
(22, 34, D:4)
  a +0 dagger
  a goblin corpse
(23, 12, D:4)
  a +0 sling
(26, -1, D:4)
  a staff of death (still there?)
  3 stones (still there?)
(26, 0, D:4)
  a +0 short sword
  14 gold pieces
  an orc corpse
(28, 25, D:4)
  a +0 dagger
  an orc corpse
(33, 38, D:4)
  9 stones