Idiom stories of three changes and four changes

During the Spring and Autumn Period, there was a man who raised monkeys in Song State. He liked monkeys very much. He kept a large group of monkeys at home. After a long time, he gradually understood the monkey's mind, and the monkey also understood his master's mind. He tried to save money at home and bought delicious food for the monkeys. Later, he became tired and couldn't afford to keep such a large group of monkeys, so he wanted to limit their food intake. But I was worried that the monkeys wouldn't listen, so I lied to them and said, "How about giving you three chestnuts in the morning and four chestnuts at night?" The monkeys were so angry that they jumped up and roared. The monkey keeper changed his mind and said, "Then I'll give you four in the morning and three in the evening, okay?" The monkeys are all very happy and lie on the ground.