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