21
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16
15
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21
21
21
21
20
21
21
21
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12
16
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16
21
17
16
21
18
21
21
21
18
21
21
17
17
21
16
21
21
16
21
21
21
21
21
18
21
21
16
21
21
21
21
21
18
21
21
12
21
21
21
21
15
21
18
16
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21
21
20
12
21
16
16
21
21
18
21
21
16
12
12
17
17
9
15
16
17
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10
18
9
14
21
14
20
12
9
13
14
9
21
11