17
21
21
9
16
12
15
20
21
20
21
20
17
20
21
21
20
20
16
10
20
21
17
21
15
21
18
21
20
21
20
21
21
20
21
20
21
21
17
21
21
20
21
21
21
21
14
15
21
21
21
17
12
20
21
21
21
21
21
18
21
17
17
21
21
21
21
17
21
21
21
21
20
21
17
21
15
15
16
15
15
21
21
15
21
17
15
16
16
17
21
17
21
21
20
21
21
21
21
16