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