North
West East
South

-870
-869
-868
-867
-866
-865
-864
-863
-862
-861
-860
-859
-858
-857
-856
-855
-854
-853
-852
-851
-850
-849
-848
-847
-846
-845
-844
-843
-842
-841
-840
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15