21
21
16
21
21
21
21
21
21
15
21
16
21
21
21
21
15
21
15
15
16
15
18
16
15
21
17
21
12
21
21
21
15
16
14
12
21
21
21
19
21
15
16
15
14
21
20
20
21
17
16
16
21
21
21
11
21
15
15
21
21
21
21
20
21
16
15
15
16
15
16
21
21
21
15
21
21
20
21
16
21
17
21
21
21
13
16
21
15
21
21
21
15
21
21
21
21
15
12