import morfa.base;
import morfa.functional.base;

template <TRange>
func rms(d: TRange): float
{
    var count = 1;
    return sqrt(reduce( (a: float, b: float) { count += 1; return a + b * b; }, d) / count);
}

func main(): void
{
    println(rms(1 .. 11));
}