5000 2
2 1 1 1 2 2 2 2 1 1 1 1 2 1 2 2 2 2 1 2 2 1 1 1 1 1 2 2 2 1 2 1 1 2 1 1 1 1 2 2 2 2 2 2 2 1 2 1 2 1 2 1 1 1 1 1 1 1 2 2 1 2 1 2 1 2 1 1 2 2 2 1 2 1 2 1 1 1 2 1 1 2 1 2 2 2 1 1 1 1 2 2 1 2 1 2 2 1 1 1 2 1 1 1 2 1 2 2 2 1 2 1 2 1 2 2 2 2 1 2 2 2 2 1 1 1 1 1 1 2 1 1 1 2 1 2 1 2 1 2 2 2 2 1 1 2 2 2 2 1 2 2 2 2 1 2 1 2 2 2 1 1 2 1 1 2 1 2 1 1 1 1 1 2 2 2 2 2 2 1 1 2 2 2 2 2 2 1 1 1 1 2 2 1 1 1 2 2 2 2 1 2 1 1 2 2 2 2 1 2 1 2 2 2 1 2 2 2 2 1 1 1 2 2 1 1 1 1 2 2 2 1 1 1 2 1 2 2 1 1 1 1 2 2 1 1 2 2 1 1 1 1 2 1 1 1 2 1 1 2 2 2 1 1 1 2 1 2 1 2 1 2 2 1 2 2 2 1 2 2 2 1 1 1 2 2 1 2 1 1 1 2 2 1 2 2 1 2 2 2 2 2 2 1 2 1 2 1 2 1 2 2 2 1 1 1 2 1 1 1 1 2 2 1 1 1 1 2 2 1 2 1 2 1 1 1 1 2 2 1 1 1 1 2 2 2 1 1 1 2 2 2 1 1 2 1 2 1 1 1 2 1 1 1 2 2 1 2 1 2 1 1 1 2 1 1 1 2 2 2 2 2 1 1 2 2 1 1 1 1 1 1 1 2 1 2 1 1 2 1 2 2 2 1 2 2 2 2 2 1 1 2 2 1 2 1 2 2 2 1 2 1 1 1 2 1 2 1 2 1 2 1 1 1 2 2 2 2 1 2 2 1 1 2 2 1 1 1 2 1 2 2 1 1 2 1 1 1 2 2 1 1 2 1 1 2 1 2 1 2 1 2 1 1 2 2 1 2 1 2 1 1 1 2 2 1 2 1 2 2 2 2 2 1 1 2 1 2 2 1 2 2 2 2 1 1 2 2 2 2 2 1 1 1 2 1 2 2 2 1 2 1 1 1 2 1 2 1 2 2 2 1 2 2 1 1 1 1 2 1 1 1 2 1 2 2 1 1 2 2 2 1 2 2 1 2 2 1 2 2 2 1 1 2 1 2 1 2 1 1 2 2 2 2 2 2 1 1 1 1 1 2 1 2 2 1 2 1 2 1 1 2 1 1 1 1 1 2 2 1 1 2 2 1 2 2 1 2 1 1 1 1 2 2 1 1 1 2 1 2 1 2 2 2 1 2 1 1 1 1 1 2 2 2 2 2 2 2 2 1 1 1 1 1 1 2 1 2 1 1 2 2 2 1 2 1 2 1 2 2 1 1 2 1 1 2 1 1 1 2 1 2 1 1 2 1 1 2 2 2 2 1 2 2 1 2 2 1 2 2 2 1 1 2 1 2 2 2 2 1 2 2 1 1 1 2 1 1 1 2 2 1 2 1 1 2 1 1 2 2 1 2 2 1 1 2 2 2 1 1 1 2 1 2 2 2 1 1 1 1 1 2 2 2 1 2 1 2 2 1 1 2 1 2 1 1 1 1 2 1 2 1 1 1 2 1 2 1 2 2 2 1 1 1 1 2 2 1 1 1 2 1 2 2 1 1 1 1 2 2 1 1 1 2 2 2 1 1 1 1 1 2 2 2 1 2 2 2 2 2 1 2 1 1 2 2 1 2 1 2 1 1 2 2 2 1 2 1 2 1 1 1 1 1 2 2 1 1 2 2 2 2 2 2 2 1 1 1 2 1 2 1 1 2 1 2 1 1 1 2 1 1 1 1 2 1 2 1 1 1 2 1 1 2 1 1 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 1 2 2 2 2 1 1 1 1 2 1 2 2 2 2 2 1 2 2 2 2 1 1 2 1 2 2 1 1 1 2 2 2 1 2 2 1 2 1 2 1 2 2 1 2 1 2 2 1 2 2 2 2 1 2 2 2 1 2 1 2 1 1 1 2 2 1 1 1 1 2 1 2 2 1 2 2 1 2 1 1 1 2 1 2 1 2 2 1 1 2 1 1 1 1 1 2 1 1 2 2 1 2 1 1 2 2 1 1 1 1 2 1 1 1 1 2 1 1 2 1 1 2 1 2 2 1 1 2 2 2 1 2 1 2 1 2 1 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 1 2 2 1 2 1 2 1 2 2 1 2 1 2 1 2 1 2 2 1 2 1 2 2 2 2 2 1 1 1 1 1 2 2 2 1 2 1 2 1 2 1 2 2 1 2 2 2 1 2 1 2 2 2 2 1 2 2 2 1 2 1 1 2 1 2 2 2 2 2 2 2 2 1 1 1 2 2 1 1 1 1 2 2 2 1 1 2 1 1 1 1 2 2 2 2 1 2 1 1 2 1 2 2 2 2 1 2 2 1 1 1 1 1 2 2 2 2 1 1 2 1 2 1 1 2 2 2 2 1 2 2 2 1 1 1 2 2 2 1 1 2 2 2 2 1 2 1 1 2 1 1 1 1 1 1 2 2 1 2 2 2 1 1 1 2 2 2 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 2 1 1 1 1 2 1 2 2 1 2 1 2 1 2 1 1 1 2 1 2 1 2 2 1 2 2 2 2 1 1 2 2 1 2 2 1 1 1 1 2 2 1 1 1 2 2 2 2 1 1 1 1 1 2 2 1 2 2 2 1 2 1 2 1 2 1 1 1 1 1 2 2 2 1 2 1 1 2 2 2 1 1 2 2 1 2 1 2 2 1 2 1 1 2 1 1 1 1 1 2 1 1 2 2 2 1 2 2 1 1 2 1 1 1 2 1 2 1 1 2 2 2 2 2 1 2 1 2 2 1 2 2 2 1 2 2 1 2 1 2 2 2 1 1 2 1 1 1 2 1 1 1 2 1 2 2 1 2 2 2 1 2 2 2 2 1 2 2 1 1 1 1 2 2 2 2 2 1 1 2 2 1 2 2 2 1 1 1 2 2 1 2 1 1 1 2 1 1 2 2 1 1 2 2 2 2 2 1 2 2 1 2 2 2 1 1 1 1 1 2 2 2 2 1 2 2 2 1 1 1 2 1 2 2 1 1 2 2 1 2 1 2 2 2 1 1 2 1 2 1 1 2 1 1 2 1 2 2 2 2 1 2 2 2 1 2 2 1 2 2 2 1 2 1 1 1 2 1 2 2 1 2 2 1 2 1 2 1 1 1 1 2 2 2 2 1 2 2 1 2 1 2 2 2 1 1 2 1 1 1 1 1 1 1 1 2 2 1 2 1 1 2 1 2 1 2 2 2 1 2 2 1 1 2 2 2 1 2 1 2 2 1 2 1 1 1 1 2 2 1 1 2 2 2 2 2 1 2 1 2 1 2 2 1 2 2 2 2 1 2 2 2 1 2 2 1 1 1 2 2 2 1 1 2 2 2 1 1 2 2 2 1 1 2 1 1 2 2 2 2 1 1 1 2 2 2 2 1 2 2 2 2 2 1 2 2 1 1 2 1 1 1 2 2 1 2 2 1 1 1 1 1 2 2 2 2 1 1 1 2 2 2 2 2 2 1 1 2 2 1 1 2 1 1 1 2 1 1 1 1 1 1 2 2 2 2 2 1 1 1 1 2 2 2 2 2 2 1 1 1 1 2 1 2 2 1 1 2 2 2 1 1 1 1 1 1 2 2 1 2 2 2 1 2 1 2 2 1 2 2 1 2 2 1 2 2 1 2 1 1 1 1 1 1 1 2 1 2 1 2 1 1 1 1 1 1 2 1 2 1 2 1 1 1 1 1 2 1 1 2 1 2 2 1 2 2 2 1 2 1 2 2 2 2 1 1 2 1 1 1 2 1 1 1 1 2 1 1 2 1 2 1 2 1 2 2 2 1 2 1 1 1 2 2 2 1 2 2 2 2 1 2 2 1 2 2 2 1 2 2 1 1 1 2 1 1 2 2 1 2 2 1 1 2 1 2 2 1 2 2 1 2 2 2 1 1 2 2 1 1 2 2 2 1 1 2 2 1 1 1 1 2 2 2 2 1 1 1 2 2 1 1 2 2 2 2 2 1 2 2 1 1 2 2 2 1 1 1 1 1 2 1 1 2 1 1 2 1 2 1 2 1 1 2 2 2 2 2 2 1 1 1 2 1 1 1 1 1 1 2 2 2 1 1 1 1 2 1 2 2 1 2 1 1 1 1 2 2 1 2 2 1 2 1 2 2 1 1 2 1 1 2 1 2 1 1 1 2 2 1 2 1 2 2 1 1 2 2 1 1 1 2 2 1 1 2 2 2 1 1 2 1 1 1 2 2 1 1 2 2 2 1 2 1 1 2 1 2 2 1 2 1 1 1 2 1 2 1 1 1 1 1 2 1 1 1 1 1 2 2 2 1 2 2 2 2 2 1 1 1 1 1 2 2 2 1 2 2 2 2 1 1 1 2 1 2 2 1 2 2 2 2 2 2 1 1 1 2 2 1 1 2 2 2 1 2 1 2 1 2 2 2 1 2 1 2 2 2 1 2 1 1 2 1 2 1 2 1 1 2 2 1 2 1 2 2 1 2 1 2 1 2 2 2 2 1 2 2 1 1 1 2 2 2 2 1 2 2 2 2 1 2 2 2 1 2 2 2 1 1 1 1 2 2 1 1 1 1 1 1 1 1 2 2 1 1 2 1 2 1 2 1 2 2 2 2 2 1 2 2 1 1 1 2 2 2 1 2 2 2 2 2 1 2 2 1 1 2 1 1 2 2 1 2 1 1 2 2 2 2 2 2 2 1 2 2 2 2 1 2 2 1 1 1 1 2 1 1 1 1 1 2 1 2 2 2 2 1 1 1 2 1 2 2 2 2 1 2 2 1 1 2 1 2 1 2 1 1 2 1 1 2 2 1 1 1 1 2 1 1 1 1 2 2 2 1 1 1 2 2 1 2 1 1 1 2 2 1 2 1 1 1 1 2 1 1 2 2 1 2 2 2 2 1 2 2 1 1 1 2 2 2 2 2 1 1 2 2 2 2 1 2 2 2 1 2 2 1 1 1 2 1 2 1 1 1 2 2 1 2 1 1 2 1 2 1 2 2 2 2 1 1 1 2 2 1 2 2 1 2 2 2 2 2 1 2 2 2 1 1 2 2 1 2 2 1 1 2 2 1 1 2 1 2 2 2 1 1 2 2 2 1 1 1 2 2 2 2 2 1 2 1 2 1 2 2 2 2 1 2 1 1 2 1 1 1 1 1 1 2 1 2 1 1 1 2 2 2 2 2 1 1 2 2 2 2 1 1 1 1 2 1 1 1 1 1 2 1 1 2 2 1 2 2 2 1 1 1 1 2 1 1 2 1 2 2 2 2 1 2 2 1 2 1 2 2 2 1 2 1 1 1 1 1 1 2 2 2 2 2 1 2 1 1 2 1 1 1 1 2 1 1 1 2 2 1 2 2 2 1 1 1 2 1 1 2 1 2 2 1 1 2 1 1 2 2 2 1 2 1 2 2 2 2 1 1 1 2 2 2 2 1 2 2 2 2 2 1 2 1 1 2 2 1 1 1 2 1 1 2 1 2 2 2 1 1 1 2 2 2 2 2 2 2 1 2 1 1 1 1 1 2 2 1 2 2 1 2 1 2 2 2 2 1 1 2 1 1 2 2 2 1 2 2 2 1 2 2 1 2 2 2 1 2 1 2 2 2 2 1 1 2 1 1 1 2 1 2 1 2 1 1 2 2 2 1 2 2 1 2 1 1 2 1 2 2 2 1 2 2 1 1 1 1 2 2 2 2 1 1 2 1 2 1 1 1 2 1 2 1 2 1 1 1 1 2 2 2 2 2 2 2 1 1 1 2 1 1 2 1 1 1 2 1 2 1 2 1 1 2 1 1 1 1 1 1 1 2 2 2 2 1 2 2 2 2 1 2 1 1 2 1 2 2 1 2 2 2 1 1 2 1 2 2 2 2 1 2 2 1 2 2 1 2 2 2 2 2 1 1 1 2 2 2 1 2 2 2 1 1 2 1 1 2 2 1 2 1 2 1 1 2 1 2 1 1 2 1 2 1 2 1 1 2 2 2 1 2 2 2 1 1 1 1 2 2 1 1 2 2 1 1 1 1 1 1 2 1 2 2 2 2 2 2 1 1 2 2 2 1 1 1 2 2 1 1 2 1 2 2 1 1 2 2 2 1 2 2 2 1 1 1 2 2 1 1 2 1 1 1 1 1 1 2 2 1 2 1 2 2 2 1 1 1 2 2 1 2 2 2 1 1 1 2 1 2 2 1 1 2 2 2 2 1 1 1 2 1 1 1 2 2 1 1 2 1 1 2 2 1 1 2 2 1 1 1 2 2 1 1 2 2 2 1 2 1 2 2 2 2 2 2 1 2 1 2 1 2 1 2 2 1 2 2 2 1 1 1 2 2 1 2 1 1 1 1 2 1 1 2 1 2 2 1 2 2 2 1 1 1 1 2 2 2 1 1 2 1 2 2 1 1 2 1 1 2 2 1 2 2 2 2 1 2 2 2 1 1 2 2 2 2 1 1 1 1 1 1 2 1 1 2 2 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 2 2 1 1 1 2 1 2 1 2 1 2 1 1 1 2 2 2 2 1 1 2 2 2 1 1 2 1 1 1 2 1 2 2 2 2 2 2 1 1 1 1 2 2 1 1 1 2 1 2 2 2 2 2 2 1 1 2 1 2 1 1 2 2 2 2 2 2 1 1 1 2 1 2 2 2 1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 1 2 1 1 2 2 2 2 1 1 1 1 1 2 2 1 1 1 2 2 2 1 2 2 2 1 2 2 2 1 2 1 2 1 1 2 2 2 1 2 2 1 1 1 1 2 2 1 2 1 1 2 2 1 1 2 2 1 1 2 2 2 2 2 2 2 2 1 1 1 2 2 1 2 2 1 1 2 2 1 1 2 1 1 2 2 1 1 2 2 1 1 2 2 1 1 1 1 2 2 1 2 1 1 1 1 2 2 2 2 2 1 1 2 1 1 1 2 2 2 1 1 2 2 2 2 2 1 1 2 2 2 1 2 1 2 2 2 1 2 2 1 1 2 2 2 2 2 2 1 2 1 2 2 2 2 1 1 1 1 2 2 1 2 1 2 2 2 2 2 1 2 2 2 2 1 1 2 1 2 2 2 2 2 2 2 2 1 1 2 1 1 2 2 2 1 1 1 1 1 2 2 2 1 2 2 2 1 1 1 1 1 2 1 2 1 1 1 2 2 2 2 2 1 2 2 1 1 1 2 1 1 2 2 2 1 2 2 2 1 2 1 2 1 2 1 2 1 2 1 1 2 1 2 2 2 2 2 1 1 1 1 2 2 2 2 1 2 2 2 2 1 1 1 2 1 1 1 2 2 1 1 2 2 2 1 2 1 2 2 2 2 2 1 1 1 2 1 1 2 1 2 2 1 2 2 2 1 1 2 1 2 1 1 1 2 2 2 2 1 1 1 2 2 2 1 2 2 2 1 2 1 2 1 1 1 2 2 1 2 2 1 2 2 1 1 2 1 1 1 1 1 1 1 2 2 1 2 1 2 2 2 1 2 2 1 1 2 1 2 1 2 1 2 2 2 1 2 1 1 2 1 1 2 2 1 2 2 2 1 1 1 2 2 2 1 1 2 1 2 2 1 2 2 2 1 2 1 1 2 1 2 2 1 1 2 2 2 2 2 1 2 2 1 1 1 2 2 2 2 1 1 2 1 2 2 2 1 2 1 2 2 2 1 1 1 2 2 1 1 2 1 2 2 2 2 1 1 2 2 2 1 1 2 1 1 2 1 2 2 1 1 1 1 1 2 1 2 2 1 2 2 1 2 1 1 2 1 1 1 2 1 2 1 1 2 1 1 1 1 1 2 1 1 2 1 1 2 1 1 1 2 2 1 1 1 1 1 2 1 2 1 2 2 1 1 2 2 1 1 2 1 1 1 2 2 2 1 1 2 2 1 2 2 1 1 1 1 2 1 2 1 1 1 1 1 2 2 1 1 2 2 2 2 2 2 2 2 2 1 2 2 2 1 2 1 2 1 2 2 1 1 1 2 2 2 1 2 2 2 2 2 2 1 1 1 1 2 1 1 1 1 2 1 2 1 2 1 1 1 1 2 2 2 1 1 2 1 1 2 2 2 1 2 2 1 2 1 1 2 2 2 2 2 1 1 1 1 2 1 1 1 1 1 1 2 2 2 1 1 2 2 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1 2 2 1 1 2 1 1 2 2 1 2 2 2 1 2 2 2 1 2 2 1 1 1 2 2 2 1 1 1 2 1 1 2 1 1 2 1 2 1 2 2 2 1 2 1 1 2 1 2 2 1 1 2 2 2 2 2 1 1 1 2 1 2 2 2 1 2 1 2 2 1 2 2 2 1 2 1 2 2 2 1 2 1 1 2 2 1 1 2 1 2 2 1 2 2 1 1 2 1 2 1 2 1 2 1 2 2 1 2 2 1 2 2 2 2 2 2 2 1 1 2 2 1 1 2 1 2 1 2 2 1 2 2 1 1 1 1 1 1 1 2 2 1 2 1 2 2 2 2 1 1 2 2 2 1 1 1 1 1 2 1 2 2 1 1 2 2 2 1 2 1 1 1 2 1 2 2 1 2 1 2 1 1 2 1 2 2 2 2 2 1 1 2 1 2 2 2 2 2 1 2 1 1 2 2 1 2 1 1 1 2 2 2 1 1 2 2 1 1 1 2 1 2 2 1 2 1 1 2 2 2 1 2 2 2 2 1 1 2 1 2 1 2 2 2 1 2 1 2 2 2 2 1 1 1 2 1 2 1 2 1 2 1 1 2 2 1 2 1 2 2 1 2 1 1 2 1 1 2 1 1 2 2 2 1 2 2 2 2 2 2 2 2 2 1 2 1 2 2 1 1 2 1 1 2 1 1 2 1 1 1 2 1 1 1 2 1 2 2 2 2 2 1 2 2 1 1 1 1 1 1 1 2 2 1 1 1 2 1 1 1 1 2 1 1 2 1 1 2 2 1 2 1 1 1 2 1 1 2 2 1 1 2 1 1 1 1 1 2 1 2 1 1 2 2 1 1 2 1 1 2 1 2 2 2 2 2 1 2 2 1 1 2 1 1 1 1 2 1 2 1 1 2 2 1 2 1 1 2 2 1 2 2 1 1 2 1 1 1 1 2 1 1 2 1 1 1 1 2 1 2 1 2 1 1 1 2 2 2 2 2 2 1 2 1 1 1 2 1 2 2 2 1 1 1 2 1 2 2 1 2 2 1 2 1 2 1 2 1 1 2 1 1 1 1 1 2 1 1 2 2 2 2 1 2 2 2 1 2 2 2 1 2 1 1 1 1 2 1 1 1 1 1 2 2 2 1 2 1 1 1 2 2 1 1 2 2 2 2 1 2 1 2 1 2 2 1 2 2 1 2 2 2 2 2 1 1 2 2 2 1 1 2 1 1 1 2 1 1 1 1 2 1 2 2 2 2 2 2 1 1 2 1 2 2 1 1 1 1 1 1 1 2 1 1 2 2 2 2 1 2 1 2 1 1 1 2 2 1 2 2 1 1 2 1 2 1 1 2 1 2 2 2 2 2 1 2 1 1 2 2 1 1 1 2 2 1 2 2 2 2 1 2 2 2 1 2 2 1 1 1 2 2 1 1 2 1 2 2 2 2 2 1 2 1 2 1 1 2 2 1 2 2 1 1 2 2 2 1 1 2 2 1 2 2 2 2 2 2 1 2 2 2 2 1 2 1 1 2 2 1 2 2 1 2 2 1 2 2 1 2 1 2 2 2 1 1 2 1 1 1 1 2 1 1 2 1 2 2 1 1 2 1 1 1 2 2 1 2 1 2 2 2 2 1 1 2 1 2 2 1 1 1 2 2 2 2 1 1 1 1 2 1 1 2 1 2 2 1 2 2 2 2 1 1 1 2 2 2 1 1 2 1 1 2 2 1 2 1 2 2 2 2 1 2 2 1 1 1 1 2 2 1 1 2 1 1 1 1 2 2 2 1 2 2 1 2 1 1 1 1 2 1 1 1 1 1 1 1 2 2 1 2 2 1 1 2 1 2 1 1 1 1 2 1 1 2 2 2 2 1 1 1 1 2 1 1 1 2 1 2 1 2 2 1 2 1 1 2 1 1 2 1 2 2 2 2 2 1 2 2 1 1 1 1 2 1 1 1 2 2 1 1 2 1 1 1 2 2 1 1 1 2 1 1 2 2 1 2 1 1 2 1 1 2 2 1 1 2 2 2 1 2 1 2 2 1 2 1 1 1 1 1 2 2 1 1 1 2 1 2 1 1 1 1 2 1 1 1 2 2 2 1 2 1 1 2 2 1 2 1 2 1 2 2 2 1 2 2 2 1 2 1 1 2 1 2 1 1 1 1 2 2 1 1 2 1 2 2 2 2 2 2 2 2 1 2 1 1 1 2 2 1 1 2 1 2 1 2 1 2 2 1 2 2 1 1 2 1 2 1 2 1 2 1 1 2 2 2 1 2 2 1 1 2 1 1 2 2 1 1 1 1 1 1 2 2 2 1 1 1 2 2 2 1 2 1 2 1 2 1 2 1 1 2 2 1 2 1 2 2 2 1 1 2 2 2 1 2 2 1 1 1 1 2 2 2 1 2 1 2 1 1 2 1 2 1 2 1 2 1 2 1 2 2 1 2 1 2 2 2 1 2 2 2 2 2 2 1 1 2 1 2 2 1 2 1 1 1 2 2 1 1 1 2 1 1 2 1 2 1 2 1 1 2 2 1 1 1 1 1 2 1 1 2 2 2 1 1 2 1 1 2 2 1 2 1 2 1 2 2 1 2 1 2 2 2 1 1 1 2 1 2 1 1 2 2 1 2 2 2 1 2 2 1 2 1 2 1 2 1 1 1 2 1 2 1 1 1 2 2 1 1 1 2 1 2 1 2 1 2 2 2 1 2 2 2 2 1 1 1 1 2 2 2 2 1 1 2 1 1 2 1 2