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