21
21
16
16
21
16
15
21
21
21
21
21
21
21
16
16
12
21
21
21
20
21
13
16
16
16
16
21
20
21
16
21
16
16
21
21
21
16
14
21
21
13
21
21
16
16
16
21
21
21
21
21
21
21
21
21
21
16
21
20
21
11
20
21
21
16
21
21
16
21
20
21
21
21
21
21
16
21
16
21
21
21
21
21
21
16
15
15
11
12
21
17
21
16
21
19
9
8
11
21