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