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