15
20
12
17
21
21
21
21
21
21
15
21
21
21
21
21
16
21
15
21
21
14
21
21
21
21
21
15
21
20
20
21
21
21
16
21
21
17
21
21
21
21
21
21
21
21
21
21
20
21
21
17
21
21
21
21
21
21
17
11
16
15
15
15
21
16
19
20
21
21
16
21
21
21
20
21
16
21
21
21
20
21
17
21
21
21
17
21
18
16
16
21
18
21
21
21
HD
12
16
20
21