8
12
14
15
10
11
13
7
9
3
4
5
16
17
18
1
2
6
19
20
|
8 |
12 |
14 |
15 |
10 |
|
11 |
13 |
7 |
9 |
3 |
|
4 |
5 |
16 |
17 |
18 |
|
1 |
2 |
6 |
19 |
20 |