18
8
16
9
10
16
17
20
20
21
21
16
20
17
21
21
21
21
21
20
21
21
17
21
17
20
21
21
21
16
9
16
15
20
21
20
21
20
20
21
21
20
20
16
10
20
21
17
21
15
21
18
21
20
21
20
21
21
20
21
20
21
21
17
21
21
20
21
21
21
21
14
15
21
21
17
21
17
20
21
21
21
21
21
18
21
17
17
21
21
21
21
17
21
21
21
19
21
20
21