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