8
12
15
11
20
12
18
9
12
14
16
21
21
21
10
18
19
19
19
8
10
17
12
11
16
18
21
18
21
21
19
16
20
21
21
16
17
10
10
21
21
21
21
21
21
21
21
21
16
21
21
21
21
16
21
21
15
21
21
21
21
21
21
21
18
16
16
21
21
21
21
13
21
16
16
21
21
21
16
21
16
21
15
21
21
21
21
21
21
21
21
16
16
17
21
11
18
16
13
19