16
20
21
19
21
21
21
21
21
21
21
21
20
20
20
19
21
21
21
20
14
21
16
21
17
21
15
16
15
17
21
20
15
21
18
21
21
15
21
21
21
21
15
21
21
21
21
21
21
21
21
21
15
21
21
17
21
20
19
21
21
20
21
21
21
21
21
20
21
21
21
21
21
21
20
21
19
13
21
21
21
19
21
21
21
15
21
21
21
20
20
21
21
21
20
19
20
21
21
19
15
19
16
20
20
20
20
20
16
15
15
17
21
20
21
21
21
20
18
17
21
21
21
21
21
20
16
18
20
21
21
21
13
21
21
21
21
21
20
21
21
20
21
21
21
21
21
16
21
21
21
21
20
17
16
15
21
21
21
15
16
21
21
21
21
21
19
16
16
17
21
21
21
20
21
21
21
18
11
21
21
20
21
20
17
21
20
21
21
21
21
21
21
16
21
21
21
21
21