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