12
12
12
21
21
21
12
12
21
12
18
12
11
21
18
12
12
12
12
12
12
12
21
12
12
12
12
12
12
12
21
12
21
21
21
21
12
12
18
21
21
12
21
21
21
21
21
21
21
11
21
12
21
21
21
21
21
12
12
21
12
21
19
12
21
21
16
12
12
12
21
12
12
12
21
21
12
12
12
11
12
12
12
12
21
12
12
21
21
20
20
20
12
12
20
12
21
21
12
18
20
12
12
12
12
12
12
16
12
9
21
20
11
12
12
12
11
12
11
12
12
20
21
21
12
12
21
20
12
21
21
12
20
12
12
19
18
21
20
21
21
21
21
21
21
20
21
12
21
21
12
12
12
12
20
12
21
12
12
12
21
12
12
21
12
12
12
21
12
21
21
18
12
12
12
12
12
12
12
21
12
21
12
12
21
12
12
10
12
12
12
21
12
12
20
21
21
12
12