21
21
21
21
21
21
21
21
21
16
20
21
21
21
21
21
12
17
21
21
16
21
10
20
21
21
16
16
21
21
17
17
21
21
15
21
21
21
15
21
16
21
16
21
21
15
21
21
21
17
21
21
21
21
21
21
21
21
21
17
17
16
21
20
21
21
21
20
21
17
21
21
16
21
14
14
20
21
21
20
17
15
19
21
21
21
21
21
21
21
21
21
21
21
21
21
21
16
16
21