x1 x2 y 28.2 -4.3 3.4 12.0 8.4 3.0 23.7 -0.5 3.4 5.0 14.9 2.9 -5.7 26.8 3.2 1.7 16.6 2.9 14.7 4.9 2.9 0.8 18.8 2.8 26.7 -7.5 2.9 14.4 6.1 3.0 11.1 7.3 2.7 6.4 11.7 2.8 3.6 16.6 3.1 2.9 16.7 3.0 16.4 2.5 2.9 7.4 14.4 3.2 34.3 -11.7 3.2 20.9 -1.8 2.9 -1.2 23.7 3.3 31.3 -8.7 3.2 14.3 7.0 3.1 16.3 3.2 2.9 -4.0 26.8 3.2 18.3 4.3 3.2 7.8 14.4 3.2 22.6 -1.0 3.2 1.3 20.0 3.2 15.4 5.6 3.1 1.2 18.8 3.0 11.3 8.8 3.0