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