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