16
19
21
21
16
21
16
21
21
21
21
15
15
21
12
21
21
21
21
21
21
21
20
21
16
21
21
21
16
21
16
21
21
21
21
21
15
16
21
20
21
21
21
21
21
21
12
21
21
21
21
16
21
20
21
15
21
21
18
21
18
21
16
16
19
21
10
18
21
21
16
13
21
21
19
21
20
21
15
16
16
21
21
16
16
21
16
20
21
12
16
16
21
21
21
21
20
21
21
21