Divide the 2nd digit of the lottery numbers (2-30) into 7 parts:
No.1 range: 2 - 6
No.2 range: 7 - 10
No.3 range: 11 - 14
No.4 range: 15 - 18
No.5 range: 19 - 22
No.6 range: 23 - 26
No.7 range: 27 - 30
Divide the 2nd digit of the lottery numbers (2-30) into 7 parts:
No.1 range: 2 - 6
No.2 range: 7 - 10
No.3 range: 11 - 14
No.4 range: 15 - 18
No.5 range: 19 - 22
No.6 range: 23 - 26
No.7 range: 27 - 30