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