20
15
21
21
20
16
20
21
19
21
21
11
16
16
15
20
17
18
21
15
21
21
21
16
18
21
21
12
21
21
21
21
21
16
21
21
19
16
21
21
21
12
21
15
21
21
21
16
20
21
17
21
21
21
21
21
21
21
21
21
19
20
21
21
20
21
21
21
18
16
21
21
21
12
16
21
18
21
21
21
21
21
21
21
16
21
21
21
21
21
21
12
21
21
15
21
20
21
21
16