0 3
0 1
0 3 2
0 1 4
1 0
1 4
1 0 3
1 0 3 2
2 4
2 3
2 4 1
2 4 1 0
3 0
3 2
3 2 4
3 2 4 1
4 1
4 2
4 1 0
4 1 0 3
