Except for primary school mathematics textbooks, almost all books and electronic instruments write numbers from right to left, with a comma every 3 digits, because English is a strong language, and the British use it in thousands, so it is easy for them to read the numbers. The Chinese are tens of thousands, and whenever I read such books, I always have to be a primary school student and count the digits to read this number.

I would like to state that because I am Chinese and a small angry youth, when I write this book, I will add a comma every four digits to the numbers I write to make it easier for Chinese people to read aloud. By the way, when writing like this, my entire page, with red wavy lines drawn underneath each line, meant that I was wrong. I wish that in the future, when someone writes numbers in the British way, the system will fill them with red wavy lines underneath them.