21
8
13
21
21
14
9
21
17
16
16
21
19
21
15
21
16
16
21
18
21
21
21
16
21
21
21
21
15
21
21
21
21
21
21
21
21
21
21
21
20
21
21
21
21
21
21
21
21
16
21
21
21
21
21
16
13
21
21
21
21
21
21
21
16
21
21
21
12
21
12
21
20
21
21
21
21
21
15
12
21
21
18
21
21
15
21
21
16
16
21
21
21
21
21
21
21
21
10
21