(def item-data
  [ "map"         9 150
    "compass"    13  35
    "water"     153 200
    "sandwich"   50 160
    "glucose"    15  60
    "tin"        68  45
    "banana"     27  60
    "apple"      39  40
    "cheese"     23  30
    "beer"       52  10
    "suntan cream"   11  70
    "camera"     32  30
    "t-shirt"    24  15
    "trousers"   48  10
    "umbrella"   73  40
    "waterproof trousers"    42  70
    "waterproof overclothes" 43  75
    "note-case"  22  80
    "sunglasses"  7  20
    "towel"      18  12
    "socks"       4  50
    "book"       30  10])

(defstruct item:name:weight:value)

(def items (vec (map #(apply struct item %) (partition 3 item-data))))