What happened to the bird's birthday?

Let me answer your question. When was your birthday written by the owner of the bird? He is waiting for you to find the location of your birthday in the box. When you find a card with your birthday on it, he knows your birthday. As for birds, it's all the same. There are two boxes for props, one for men and the other for women. This recognized 1 to 360 days is divided into 30 parts, that is, the number of days in each month is divided into 5 parts. Because there is no 3 1 day in the lunar calendar, he will not calculate leap months. The plates on the first floor are regularly arranged vertically and horizontally, with months 1 and 7, 2 and 8 to 6 and 12. There are 12 numbers in each cell. This is the information on the chart. In addition, the card you are looking for is 12. Each card has 30 numbers, and 30 numbers are one number in each cell. When you get the card, your birthday has come out. This is an arithmetic problem: 360 days -30 grids-12 cards = 1. I wonder if I can make it clear. Can you understand?