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