15
15
16
16
21
16
15
15
16
16
16
20
18
15
21
15
15
16
16
19
20
21
16
21
17
18
19
21
21
21
21
21
21
21
21
21
21
21
HD
21
21
21
21
21
20
HD
21
21
16
21
20
21
21
21
21
20
16
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
18
21
21
21
21
21
21
21
21
20
21
21
21
21
21
21
21
21
21
21
21
21
21
15
21
21
21
21
21