IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(0, 7, D:1)
  a +0 leather armour
(0, 22, D:1)
  a ball python corpse (skeletalised by now)
(11, 34, D:1)
  a +0 club
(16, -8, D:1)
  a +2 short sword of freezing
(22, 21, D:1)
  a stone
(25, -3, D:1)
  a +0 dagger
(42, 16, D:1)
  a +0 hand axe
(47, 4, D:1)
  a +0 short sword
  2 stones
(49, 12, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 dagger
  a kobold corpse (skeletalised by now)
(2, 1, D:2)
  an adder corpse (skeletalised by now)
(3, 2, D:2)
  a +0 club
  a +0 sling
(3, 11, D:2)
  a +0 club
  a goblin corpse
(3, 12, D:2)
  a ball python corpse
(4, 12, D:2)
  a +0 spear
(4, 13, D:2)
  a +0 spear
(6, 12, D:2)
  a throwing net {=f, !d}
(11, 17, D:2)
  a +0 whip
(18, 15, D:2)
  a +0 robe
(20, 2, D:2)
  a +0 club
(20, 4, D:2)
  a frilled lizard corpse
(21, -8, D:2)
  a +0 leather armour
(21, 3, D:2)
  a +0 dagger
(22, -1, D:2)
  a ball python corpse
(22, 1, D:2)
  a bat corpse