BEFORE
The number before 10.
9
The number after 7.
8
The number before 1.
0
The number after 2.
The number before 5.
4
The number after 4.
5
The number before 9.
8
The number after 5.
6
The number before 7.
6
The number after 1.
2
The number before 6.
5
The number after 3.
4
The number before 3.
2
The number after 9.
10
The number before 4.
3
The number after 8.
9
The number before 8.
7
The number after 6.
7
The number before 2.
1
The number after 0.
1