9
16
17
11
12
21
21
16
21
8
20
21
21
21
16
16
15
20
17
12
21
20
21
18
21
15
14
15
20
12
21
21
13
21
16
21
15
15
21
16
21
21
21
17
21
17
15
21
21
15
21
21
18
16
21
21
16
16
21
21
16
21
21
21
12
21
21
21
16
16
21
17
21
21
21
21
21
21
16
15
21
21
21
10
16
21
21
16
16
21
21
21
21
21
21
21
21
21
21
21