2
0
0
0
4
2
2
4
0
0
0
4
4
4
0
2
2
0
4
4
0
2
4
0
2
4
2
4
2
2
2
4
2
2
2
4
4
0
4
0
0
0
2
0
0
1
2
2
0
2
2
2
0
0
0
2
2
0
6
4
0
0
0
0
0
0
2
0
2
4
0
2
0
4
0
0
0
2
0
0
2
4
0
0
2
0
2
2
0
2
2
2
2
4
0
4
2
4
0
6
0
2
2
0
2
0
0
6
0
0
2
0
0
2
2
2
2
2
2
0
0
4
0
0
2
2
4
0
0
2
4
0
0
0
0
0
0
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2
0
0
2
4
4
6
0
2
0
2
0
6
2
2
0
0
2
2
2
2
0
0
2
2
0
4
6
2
0
2
13
0
2
2
2
0
2
2
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2
0
0
0
0
0
2
4
0
4
2
2
4
2
2
2
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0
2
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0
2
2
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2
6
4
2
0
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0
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0
0
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3
2
0
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4
0
4
2
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2
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0
0
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0
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2
4
2
2
2
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0
2
0
0
2
2
2
0
2
4
7
0
2
4
0
0
0
2
2
2
2
2
2
2
2
0
2
2
8
0
2
2
2
4
2
2
2
2
