17
9
14
20
21
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9
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12
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15
8
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19
15
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21
13
8
21
12
21
21
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12
12
21
21
21
21
21
21
21
21
15
16
21
21
21
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21
21
21
17
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21
21
21
17
21
21
21
21
21
21
21
21
21
21
21
21
21
16
21
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16
21
21
21
20
21
21
21
21
21
21
16
21
21
20
21
21
21
16
21
21
20
16
15
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15
20
16
16
21
21
21
20