// comparison operator example
def main(field x) -> field:
  field y = if x >= 3 then 1 else 5 fi
  field z = if y <= x then x**3 else y**3 fi
  y = if x < 3 then 2 else 6 fi
  z = if y > z then 1 else 2 fi
  x = if x == x then x else y fi
  return x + y + z