AR
3
C
1
-1
-2
-3
-4
-5
-6
-7
-8
-9
17
18 19
2
3
6
7
8
9
5
4
16
13
11
14
1
12
10
15
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19