7 2 1.0 2.0 1.0 4.0 8.0 4.0 2.0 5.0 -11.0 -1.0 1.0 -1.0 2.0 1.0 1.0 0.0 1.0 1.0 -2.0 1.0 0.0 -2.0 -10.0