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