What about tarot cards with birthdays?

For example, the person born on June 1990 1 is1991+1=1993.

The following numbers will be thousands+hundreds+ten+digits, that is, 1+9+9+3=22.

Then this person's card is number 22 in the Great ackner.

If the final number obtained by adding is greater than 22, ten digits and one digit are added until one digit is obtained.

There are many calculation methods, and this is one of them. I hope I can help you.