Region Map
Coordinate
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20
90
20
91
20
92
20
93
20
94
20
95
20
96
20
97
20
98
20
99
21
00
21
01
21
02
21
03
21
04
21
05
21
06
21
07
21
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21
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21
10
21
11
21
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21
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21
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21
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21
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28
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31
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32
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33
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34
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35
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36
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37
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40
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41
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42
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43
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44
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45
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46
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47
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48
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16839
16838
16837
16836
16835
16834
16833
16832
16831
16830
16829
16828
16827
16826
16825
16824
16823
16822
16821
16820
16819
16818
16817
16816
16815
16814
16813
16812
16811
16810
16809
16808
16807
16806
16805
16804
16803
16802
16801
16800
16799
16798
16797
16796
16795
16794
16793
16792
16791
16790
16789
16788
16787
16786
16785
16784
16783
16782
16781
16780
= Freee Cortrdinate
= Occupied(Single Region)
= Occupied (Var Region)
= Center of the grid