Device term("/dev/term/0");
str new-line = "\n";

fn1 main() {
    print(fib(35).str);
    exit(0);
}

fn1 fib(int n) int {
  if (n < 2) return n;
  return fib(n - 2) + fib(n - 1);
}

fn1 pln(str string) {
    term.write(string);
    term.write(new-line);
    return;
}