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