20
21
21
21
17
11
15
10
16
13
15
8
20
10
20
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15
19
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18
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8
12
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12
21
17
8
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10
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19
21
9
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21
21
21
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21
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21
15
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21
15
17
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15
20
12
21
21
21
21
21
21
17
15
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21
20
20
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18
21
21
21
20
15
21
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15
9
8
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15
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21