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