1

closure size: 4
0 1 2 2 2 2 3 3
1 0 2 2 2 2 3 3
2 2 0 3 1 3 2 2
2 2 3 0 3 1 2 2
2 2 1 3 0 3 2 2
2 2 3 1 3 0 2 2
3 3 2 2 2 2 0 1
3 3 2 2 2 2 1 0