16
16
16
20
18
21
21
21
8
9
14
20
15
21
21
21
21
21
21
21
21
17
21
21
21
15
12
16
21
15
21
21
15
16
20
21
15
16
21
16
21
21
21
21
19
21
21
21
21
16
16
21
21
16
21
16
21
21
21
21
15
21
21
21
21
21
21
21
21
21
20
21
21
21
20
21
21
21
15
21
21
21
21
21
21
21
16
21
16
21
21
21
20
21
16
21
21
21
21
16