North
West East
South

-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
-1920
-1921
-1922
-1923
-1924
-1925
-1926
-1927
-1928
-1929
-1930
-1931
-1932
-1933
-1934
-1935
-1936
-1937
-1938
-1939
-1940
-1941
-1942
-1943
-1944
-1945
-1946
-1947
-1948
-1949
-1950