17
21
20
21
21
21
21
21
21
21
21
21
21
21
21
21
21
20
21
21
21
20
21
21
16
21
20
21
20
21
21
21
20
20
21
21
21
21
21
21
9
21
21
21
21
20
21
21
21
21
21
21
20
21
21
20
21
21
21
21
21
21
21
21
21
21
21
21
20
21
21
21
20
20
20
21
21
21
21
20
21
21
20
21
20
21
21
21
20
20
20
21
21
20
20
20
19
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
16
21
18
21
21
21
21
21
21
21
20
21
20
19
21
21
21
21
21
20
21
21
20
21
21
21
21
21
21
19
20
20
20
21
21
20
18
20
20
21
HD
21
21
21
21
21
21
21
17
21
19
19
20
21
20
21
21
21
21
21
21
21
20
21