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