/* ackermann function */
func ack(m: int32, n: int32): int32 {
  if m == 0 {
    return n + 1
  }

  if n == 0 {
    return ack(m - 1, 1)
  }

  return ack(m - 1, ack(m, n - 1))
}

export func main() {
  let result: int32 = ack(3, 1)
  println(result)
}