IndexError

Level 1 of the Dungeon
[Shop] Tifises's Antique Armour Emporium
  a +0 leather armour (50 gold)
  a +0 chain mail (112 gold)
  a +1 leather armour of poison resistance (275 gold)
  a +0 leather armour (50 gold)
  a +0 leather armour (50 gold)
  a +0 kite shield (112 gold)
(0, 0, D:1)
  a +0 club
(7, 3, D:1)
  a +0 club
(9, 28, D:1)
  a +0 dagger
(11, 46, D:1)
  a +0 club
(12, 36, D:1)
  6 poisoned darts
(20, -2, D:1)
  a +0 pair of boots
(23, -7, D:1)
  4 stones
(23, 44, D:1)
  a +0 leather armour
(31, 2, D:1)
  a +0 dagger
(34, 4, D:1)
  a stone
  a +0 whip
(34, 26, D:1)
  a +0 mace
(37, 23, D:1)
  a +0 dagger
(40, 28, D:1)
  a +0 club
(41, 1, D:1)
  a +0 robe
  a +0 dagger
(43, 27, D:1)
  4 stones
(55, 45, D:1)
  a +0 dagger
(57, 8, D:1)
  8 stones

Level 2 of the Dungeon
(0, 0, D:2)
  a +3 spear
(0, 13, D:2)
  a scroll of poison
(3, 15, D:2)
  a potion of ambrosia
(4, -6, D:2)
  an adder corpse
(6, -12, D:2)
  a +0 club
(6, -11, D:2)
  a +0 dagger
(10, -26, D:2)
  a ball python corpse

Level 4 of the Dungeon
(0, 0, D:4)
  a potion of flight
(1, 2, D:4)
  3 stones
(3, 5, D:4)
  a scroll of noise
(11, 7, D:4)
  4 stones