রেঞ্জ R−{34}R-\left\{\frac{3}{4}\right\}R−{43}
R−{43}R-\left\{\frac{4}{3}\right\}R−{34}
R−{32}R-\left\{\frac{3}{2}\right\}R−{23}
R−{23}R-\left\{\frac{2}{3}\right\}R−{32}
