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