21
21
21
21
16
16
21
21
21
21
21
21
21
16
21
21
21
21
21
21
20
16
21
12
15
16
21
14
16
15
20
15
21
15
21
15
21
21
16
21
21
21
21
21
16
14
21
20
12
21
21
21
20
21
21
16
21
21
21
21
15
16
21
20
21
21
16
21
18
16
21
16
21
21
21
15
21
21
21
21
21
16
21
18
16
21
21
21
12
21
21
21
16
21
21
20
21
21
13
21