(−18,116)\left(-\frac{1}{8}, \frac{1}{16}\right)(−81,161)
(18,−116)\left(\frac{1}{8},-\frac{1}{16}\right)(81,−161)
(−18,−116)\left(-\frac{1}{8},-\frac{1}{16}\right)(−81,−161)
(18,116)\left(\frac{1}{8}, \frac{1}{16}\right)(81,161)