6 4 1.0 2.0 -1.0 3.0 1.0 2.0 3.0 9.0 16.0 0.0 -2.0 0.0 4.0 -1.0 1.0 2.0 11.0 5.0 3.0 0.0 0.0 2.0 -1.0 4.0 -1.0 1.0 -3.0 1.0 7.0 1.0