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