21
9
13
17
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12
21
21
21
8
21
20
21
21
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21
16
21
21
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17
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17
21
21
15
21
15
21
15
21
15
21
15
21
16
16
21
16
21
21
21
16
21
16
21
21
21
21
20
21
18
20
16
18
21
21
21
21
21
21
21
21
21
21
21
21
21
15
21
21
21
21
21
21
21
12
21
21
21
21
21
21
21
21
16
21
15
14
16
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15
21
21
15
21
15
15
21