20
16
17
19
21
21
15
12
21
21
21
21
21
21
21
21
21
17
17
11
8
18
8
21
21
10
21
18
21
14
18
10
9
21
21
11
20
16
18
21
21
12
21
21
21
21
15
21
21
20
17
21
21
21
21
21
21
21
15
16
15
21
16
21
21
17
21
21
21
20
20
20
12
21
21
12
21
20
21
17
19
21
21
21
21
11
21
20
21
21
21
21
16
21
21
21
17
14
16
12
17
17
21
16
16
15
16
21
16
18
20
20
21
21
21
20
20
19
19
9
18
17
21
21
21
21
21
21
20
16
21
19
21
21
21
21
15
21
21
14
17
21
16
17
17
21
21
21
21
21
21
21
21
20
21
21
21
21
21
21
17
21
21
21
20
21
21
21
21
15
16
20
20
20
20
21
20
21
15
19
21
17
21
21
12
21
17
21
20
21
21
10
21
21
21
21
21
21
17
