4 2 1 1 1 0.0 0.0 1 1 2 1.0 0.0 1 1 3 1.0 1.0 1 1 4 0.0 1.0 1 1 4 1 1 1 2 1 2 2 3 1 3 3 4 1 4 4 1 1 0