21
21
16
21
21
21
21
21
21
21
21
21
16
21
21
21
15
11
16
20
12
20
18
21
21
16
20
21
21
21
18
21
16
21
21
21
16
21
21
16
16
20
21
21
20
21
21
16
21
21
16
21
21
21
21
21
21
12
21
21
18
16
21
20
10
12
16
20
19
21
21
21
21
21
21
20
21
17
15
21
21
16
16
21
18
20
20
16
21
21
21
14
20
21
16
16
21
16
16
21