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