79 Concession is separated by 18 numbers. What do you mean, the location is unchanged?

The interval of 18 between July and September is one, and the same position means that it is one of the traditional divination methods in China. 79 concessions every 18, the position remains the same. This is one of the traditional divination methods in China, and it is called "six hexagrams". Among them, the "seven-nine compromise" means that from the seventh place, every two positions (from Yang to Yin or from Yin to Yang) will have a change and the beat will change nine times. And "separated by a number 18, the position remains unchanged" means that every other position will appear from the eighteenth position, and the position that appears in this position remains unchanged. According to the theory of the Book of Changes, each hexagram represents a state or meaning, while change represents changes that have taken place over time. The interval of 18 between July and September is one, and the same position means that it is one of the traditional divination methods in China. This answer is for reference only. Don't be blindly superstitious.