The 1st digit is divided into 5 parts

Divide the 1st digit of the lottery numbers (1-45) into 5 parts:

No.1 range: 1 - 9

No.2 range: 10 - 18

No.3 range: 19 - 27

No.4 range: 28 - 36

No.5 range: 37 - 45