sta       cast        
1         1           
1         2           
1         3           
2         1           
2         2           
2         3           
3         1           
3         2           
3         3           
4         1           
4         2           
4         3           
5         1           
5         2           
5         3           
6         1           
6         2           
6         3           
7         1           
7         2           
8         1           
8         2           
8         3