The difference between the 1st and 2nd digits is divided into 6 portions

The difference between the 1st and 2nd digit of the lottery numbers is divided into 6 parts.

Part 1: 1 - 6

Part 2: 7 - 12

Part 3: 13 - 18

Part 4: 19 - 23

Part 5: 24 - 28

Part 6: 29 - 33