Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 2.141713 2.790286 2.578895 2 1 2.447264 4.204759 1.029358 3 1 3.674509 2.140287 1.595277 4 1 3.884686 4.035277 2.681176 Masses 1 28.0855