pub fn fib(n: Int) -> Int {
  case n {
    0 -> 0
    1 -> 1
    _ -> fib(n - 1) + fib(n - 2)
  }
}

pub fn add(lhs: Int, rhs: Int) -> Int {
  lhs + rhs
}

pub fn main() {
  fib(40)
  |> add(fib(40))
}