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
-1590
-1591
-1592
-1593
-1594
-1595
-1596
-1597
-1598
-1599
-1600
-1601
-1602
-1603
-1604
-1605
-1606
-1607
-1608
-1609
-1610
-1611
-1612
-1613
-1614
-1615
-1616
-1617
-1618
-1619
-1620