x1:    2.276    0.192   -0.041   -0.006   -1.408   -0.974    1.927    1.051
 x1:   -0.953    0.176   -0.487   -1.296    1.497    1.708    0.043   -0.293
 x1:    0.208   -1.312    0.171    1.326    0.163    0.218   -0.065   -1.293
 x1:   -0.630    1.813    0.634    0.018    0.273   -0.989   -1.069    1.489
 x1:    1.386   -0.694    0.656   -0.262   -1.354    0.696    1.547   -0.106
 x2:   -0.435    2.167    0.222   -1.773   -0.322   -0.007   -0.189    1.733
 x2:    1.139   -1.593   -1.329    0.299   -0.572    1.165    1.719   -0.748
 x2:   -2.003   -0.304    0.142    0.392    1.933    0.480   -1.945    0.383
 x2:    0.399   -0.093    1.651    0.439   -1.502   -1.120    0.104   -0.210
 x2:    0.652    1.709   -1.323   -1.431    0.077   -0.477    0.603    1.793
 x3:   -1.629   -3.657   -0.578    3.176    2.056    0.079   -0.816   -3.481
 x3:   -1.930    2.912    3.522    1.112    0.341   -3.220   -2.937    1.103
 x3:    3.171    1.077   -0.386   -1.917   -3.691   -0.028    3.707    1.747
 x3:   -0.088   -0.971   -3.660   -1.493    2.890    2.719    0.613    0.094
 x3:   -3.147   -2.809    2.266    3.364    0.739   -0.005   -2.193   -2.949
 x4:   -2.098   -0.796   -0.028   -0.727    2.028    1.205   -2.819   -1.162
 x4:    0.631   -0.310    1.635    2.358   -2.193   -1.896    0.562    0.197
 x4:    0.748    2.935   -1.067   -3.707   -0.066    0.525   -0.297    3.131
 x4:    0.872   -3.589   -0.485    0.257   -0.725    1.890    1.589   -2.487
 x4:   -1.601    0.460   -0.604    0.897    3.307   -1.279   -2.254    0.385