100000
-100000
"Hello"
true
[
  "Hello",
  true,
  100000
]
{
  "string" : "Hello",
  "boolean" : true,
  "integer" : 100000
}
{
  "integer" : 100000,
  "array" : [
    1,
    2
  ]
}
[
  "zero",
  ["succ" , ["pred" , "zero"]]
]
(
  <"zero">,
  <"succ" : <"pred" : <"eval" : (
    "f",
    "\"3\t4\n\""
  )>>>
)