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