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