IndexError

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 dagger
(1, 30, D:1)
  a +0 long sword
(3, 1, D:1)
  a +0 robe
(15, 26, D:1)
  a +0 ring mail
(16, 3, D:1)
  a +0 dagger of speed
(35, 40, D:1)
  a +0 club
(35, 44, D:1)
  a +0 short sword
(36, 46, D:1)
  a +0 dagger
(44, 39, D:1)
  a +0 dagger
(45, 30, D:1)
  2 stones
(46, 43, D:1)
  5 stones
(47, 28, D:1)
  a +0 sling
(58, 9, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 club
(4, -9, D:2)
  a +0 whip
(13, 4, D:2)
  a +0 scale mail
(16, -1, D:2)
  a giant cockroach corpse
(17, -11, D:2)
  a +0 chain mail
(20, -16, D:2)
  a +0 demon whip
(27, 2, D:2)
  a +0 buckler
(40, -10, D:2)
  a rat corpse
(40, 4, D:2)
  a +0 plate armour
(41, -5, D:2)
  a +0 rapier
(44, -18, D:2)
  a +0 whip
(46, 22, D:2)
  a +0 hammer
(48, -17, D:2)
  a +0 short sword
(50, -16, D:2)
  a +0 dagger
  5 stones
(57, 8, D:2)
  a +0 giant spiked club