21
8
13
11
8
8
11
11
9
21
8
10
13
21
21
21
17
16
21
16
16
21
21
21
21
21
20
21
20
21
16
16
21
21
21
21
20
21
21
14
17
21
21
16
21
21
18
21
21
18
16
21
21
21
21
21
21
16
15
21
21
16
21
16
21
21
21
16
20
21
21
21
21
21
21
21
21
21
21
21
21
21
20
21
21
21
21
21
20
21
21
21
21
21
16
21
20
21
21
21