17
21
21
21
21
21
21
21
21
21
12
15
17
21
21
21
21
18
20
20
21
15
21
21
17
21
17
21
15
15
21
15
15
16
17
21
21
21
21
17
HD
21
21
16
16
16
15
12
21
21
20
21
21
17
21
21
15
17
21
16
16
21
21
21
21
21
15
14
17
21
18
21
16
18
17
18
15
21
21
21
21
16
21
21
16
19
21
21
21
20
21
21
15
12
21
21
12
21
16
21
21