21
16
16
17
20
21
15
21
20
21
17
17
21
17
21
20
21
21
16
21
17
17
21
21
11
21
21
21
16
21
21
14
21
11
15
20
21
12
21
21
12
21
21
21
20
21
21
21
21
16
21
16
21
16
16
21
19
12
15
15
17
21
15
21
15
21
20
20
21
21
21
21
16
21
17
16
16
21
21
17
21
21
16
20
16
21
17
21
12
21
21
16
15
21
21
21
16
21
21