20
18
21
15
8
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11
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21
20
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19
11
14
8
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9
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11
15
10
20
12
16
11
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15
20
21
21
20
15
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19
21
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15
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20
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21
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21
21
19
21
21
17
20
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21
21
20
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21
21
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21
21
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21
21
19
20
16
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15
20
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20
21
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21