21
13
21
21
21
21
21
21
21
21
21
21
12
21
21
21
21
21
21
21
21
21
19
16
21
21
21
15
12
15
9
21
8
11
20
18
9
14
16
21
21
21
18
19
19
19
8
17
12
16
18
19
18
19
16
21
16
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
18
16
16
21
21
21
21
21
21
21
21
16
21
16
21
21
21
21
21
21
17
21