21
21
21
16
21
21
21
16
21
21
21
21
16
21
16
21
21
16
21
16
21
21
21
21
21
21
21
21
21
21
21
21
16
16
21
20
21
21
21
21
21
21
21
21
21
21
15
21
16
21
21
16
21
18
21
21
21
16
21
21
16
HD
21
21
21
21
18
21
21
21
21
21
16
15
14
16
21
21
21
20
21
21
16
21
21
19
16
15
20
21
21
21
21
21
21
21
16
21
21
20
21