21
21
21
21
21
16
21
16
21
21
21
21
16
20
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
15
21
12
12
21
16
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11
21
21
21
21
21
21
21
14
21
14
21
14
12
21
21
16
20
21
16
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21
21
21
21
21
15
21
21
21
21
21
16
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16
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21
15
21
21
21
21
10
21
21
21
21
21
21
21
21
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16
16
21
21
21
21
10
21