21
15
16
17
15
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19
10
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20
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15
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15
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21
19
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21
21
21
21
21
15
21
21
21
21
21
15
20
21
21
21
21
21
21
20
21
15
10
13
15
14
15
13
13
19
8
20
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15
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15
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14
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18
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21