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