North
West East
South

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
-2820
-2821
-2822
-2823
-2824
-2825
-2826
-2827
-2828
-2829
-2830
-2831
-2832
-2833
-2834
-2835
-2836
-2837
-2838
-2839
-2840
-2841
-2842
-2843
-2844
-2845
-2846
-2847
-2848
-2849
-2850