12
20
10
21
14
21
19
21
21
21
13
19
9
19
21
8
21
17
21
21
21
15
16
8
20
21
20
21
20
21
21
20
21
21
21
9
10
11
21
21
9
11
16
21
10
21
21
9
21
21
21
21
21
21
20
21
9
15
21
10
21
21
21
9
21
21
21
13
21
11
19
21
21
21
16
11
8
21
21
21
17
15
21
21
18
21
19
16
21
18
20
18
21
21
21
21
21
14
17
14
16
21
21
21
21
21
21
21
21
21
8
21
21
21
21
20
8
21
8
21
21
8
20
21
20
21
21
21
21
21
21
17
21
21
21
19
13
21
21
21
21
21
21
21
21
20
21
21
21
21
21
10
20
21
21
20
16
17
11
21
21
16
20
21
20
20
13
11
20
20
11
21
9
21
16
11
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
20
21
21
21
21
21
21