// example using if-then-else-fi with ==
// x = 1 -> 1 + 1 + 1 = 3
// x = 2 -> 2 + 5 + 125 = 132
def main(field x) -> (field):
  field y = if x + 2 == 3 then 1 else 5 fi
  field z = if y == x then x**3 else y**3 fi
  return x + y + z