0:{}:{}
1:{2}:{(4,1)}
2:{}:{}
3:{2}:{(5,1)}
4:{1}:{(0,1),(1,1),(8,1)}
5:{1}:{(2,1),(3,1),(9,1)}
6:{2}:{(0,1),(2,1),(7,1)}
7:{1}:{(6,1),(11,1)}
8:{2}:{(4,1)}
9:{2}:{(5,1)}
10:{1,2}:{(7,1),(8,1),(9,1)}
11:{2}:{(7,1)}