fn fib(int n) int
{
  if (n <= 1)
    return n;

  return fib(n - 1) + fib(n - 2);
}

fn sum(uint a, uint b) uint
{
  return a + b;
}

if (fib(7) == 13 && sum(2, 2) == 4)
  printline("functions passed");
else
{
  printline("functions failed");
  exit(1);
}