y x1 x2 -0.82984050048 2.2026628536 -1.4107642523 12.057300263 5.528911982 -9.4309014607 13.186573262 9.0329509969 -8.2371925787 12.008138412 4.8252386441 -7.3692571342 2.4686445086 6.1326984927 4.0347725009 5.3562963594 9.0356547595 0.62774335194 10.309136831 13.269968626 -0.96984970158 3.482106849 11.807981339 0.81784039038 15.206192832 13.42429561 -5.1929449076 -0.82810676434 12.73948344 4.9403811169 20.223032091 12.691156148 -11.164076011 5.5317959718 13.735995191 4.0372004382 7.6760888906 19.814889009 -1.9916828698 5.0418675349 16.092253315 6.0387676994 17.452622677 15.185369505 -8.4834502338 6.9041145689 21.825362957 0.52652233389 11.191722523 17.950565467 -2.3299373924 12.71647754 23.479613459 -0.92843911579 24.212738234 21.966999387 -9.2575669898 7.8014586317 20.62859578 3.4224345412 24.70057578 27.746173869 -9.748547091 15.883175268 28.63651859 1.0106716004 6.5760583145 27.587367658 3.3069554955 26.097865436 24.458526478 -9.0155997441 19.930795817 26.054912222 -4.658564431 20.045279376 27.360413398 -5.468406037 24.163019712 29.952926747 -11.527842598 32.375475807 34.275331433 -16.009677088 28.064349862 32.555606349 -11.112695155 30.739315761 30.679842771 -11.748671509 19.252542428 32.556466602 -6.3308157225 29.880067633 37.013293247 -14.62979691 19.394690534 37.644554296 1.5473216314 24.13135436 36.841354239 -8.8537403621 33.675820489 38.374387068 -14.20426584 22.367228381 36.263611185 -4.9918495563 27.902385254 39.553839865 -6.7694154354 36.050578302 42.670791725 -11.665823799 21.262643811 43.187086399 -0.20289997142 21.622129636 43.218384226 -4.4864177841