17
21
21
10
9
16
16
8
17
18
9
13
8
12
18
9
16
14
9
12
9
10
11
21
12
21
21
21
21
21
21
21
21
21
11
20
21
21
21
21
21
21
19
21
21
21
20
21
21
21
12
12
21
21
21
21
21
20
10
21
21
21
21
16
21
21
21
21
21
21
20
21
21
21
21
21
16
21
16
21
21
21
21
21
13
21
21
21
21
21
21
21
16
16
20
21
21
21
21
21