10
16
20
16
20
21
20
15
21
21
21
21
21
19
10
21
21
21
16
21
21
15
20
21
12
21
21
21
21
21
21
21
21
21
21
21
21
21
21
16
21
21
20
21
21
17
21
21
20
21
21
21
16
21
21
16
21
18
21
21
16
21
21
21
21
21
21
21
21
21
20
21
21
21
21
21
21
21
20
21
21
16
21
9
21
21
21
16
21
19
21
16
21
21
15
18
21
21
20
21