21
16
16
16
21
21
20
12
21
20
19
21
21
21
20
9
21
21
21
21
17
21
21
21
21
15
16
21
20
21
17
21
20
20
21
14
16
20
21
21
20
21
21
21
17
20
20
21
20
20
21
20
21
21
15
16
21
16
15
16
16
21
21
21
12
21
21
21
20
21
21
13
16
16
21
20
18
21
20
21
21
15
21
21
15
21
21
21
21
21
21
19
21
21
21
15
21
19
21
21