21
21
21
21
21
21
15
21
21
15
21
21
21
18
21
21
21
21
21
21
15
21
15
21
21
16
16
21
21
21
21
16
16
21
17
15
16
21
12
21
16
21
20
21
17
15
21
21
20
21
21
21
21
16
16
17
15
21
21
21
21
21
21
21
21
15
16
21
21
21
17
21
17
16
16
HD
21
21
13
15
14
12
15
21
14
16
21
16
12
17
21
20
12
16
12
19
21
16
17
20
21