Divide the 2nd digit of the lottery numbers (2-30) into 3 parts:
No.1 range: 2 - 11
No.2 range: 12 - 21
No.3 range: 22 - 30
Divide the 2nd digit of the lottery numbers (2-30) into 3 parts:
No.1 range: 2 - 11
No.2 range: 12 - 21
No.3 range: 22 - 30