Efficiency

Level 1 of the Dungeon
(9, -8, D:1)
  12 stones
(13, -4, D:1)
  a +0 leather armour
(45, -3, D:1)
  19 bolts
(47, -1, D:1)
  a hobgoblin corpse

Level 2 of the Dungeon
(0, 0, D:2)
  13 gold pieces
(2, 9, D:2)
  7 gold pieces
(4, 15, D:2)
  an adder corpse
(4, 33, D:2)
  a +0 falchion
(5, 0, D:2)
  a +0 leather armour
(5, 14, D:2)
  a stone (still there?)
  a +0 dagger (still there?)
(5, 15, D:2)
  a +0 leather armour
(14, 25, D:2)
  17 arrows