21
21
21
21
20
15
21
21
21
20
16
21
21
15
21
20
16
15
21
21
21
21
21
15
16
21
15
16
16
21
16
21
15
21
12
21
21
21
21
16
16
21
21
21
21
16
21
21
21
16
21
21
21
21
21
21
21
21
16
21
21
16
13
21
21
21
16
16
20
16
21
21
19
15
21
21
21
16
21
21
15
21
21
16
16
21
21
11
18
12
21
21
16
16
16
17
15
16
15
16