21
12
13
9
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16
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15
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16
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15
15
18
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16
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21
21
21
15
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16
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17
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21
21
21
21
16
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21
21
21
16
21
21
21
20
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12
12
12
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16
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15
21
21
21
21
21
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21
16
16
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16
16
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16
20
15
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16
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16
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18
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17
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21
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15
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15
21