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