How to tell fortune with the Book of Changes?

Make three oblate objects with the same plane diameter, carve odd numbers on the front and even numbers on the back as objects, and shake the objects up and down with your hands for a while to prevent them from being uncovered on the desktop. Draw "-"and "-"on the paper, both odd and even, both "X".

Do this six times for the first time and the second time (from bottom to top). . On hexagrams, you can get the name and position of hexagrams.

Those who draw "□" in the three odd numbers are-,those who draw "X" in the even numbers are-,and those who draw "□" are-,so those who draw three odd numbers or even numbers are "six".